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Tata Motors Data Scientist Interview Questions and Answers

Updated 24 Jul 2024

Tata Motors Data Scientist Interview Experiences

2 interviews found

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Jul 2023. There were 3 interview rounds.

Round 1 - Group Discussion 

It was campus placement. We were givien the topic "future of AI and ML in automobile industry". The time given was around 15mins. The explained the process in great detail and very clearly.

Round 2 - Technical 

(2 Questions)

  • Q1. CV and basic of ML
  • Q2. What if questions. For eg, if you want to launch a new EV in market then what will be your approach What if you are the CEO.. ETC
Round 3 - HR 

(2 Questions)

  • Q1. Ethical questions
  • Q2. Besic HR questions like why this company

Interview Preparation Tips

Topics to prepare for Tata Motors Data Scientist interview:
  • Machine Learning
  • Tata motors history
  • Your CV
Interview preparation tips for other job seekers - My advice is be cool and true to yourself. They tried to grill you and see how you perform under pressure.

I applied via Recruitment Consultant and was interviewed in Jul 2021. There was 1 interview round.

Interview Questionnaire 

3 Questions

  • Q1. Project Based Questions
  • Q2. Which Algorithms you used , statistical measured , challenges , outcome
  • Ans. 

    I have used various algorithms such as linear regression, decision trees, and neural networks to analyze data and make predictions.

    • Used linear regression to predict housing prices based on various features

    • Implemented decision trees to classify customer behavior and recommend products

    • Utilized neural networks for image recognition tasks

    • Challenges included dealing with missing data and overfitting

    • Outcome was improved accu

  • Answered by AI
  • Q3. Why a specific algorithm was used. Reasoning.
  • Ans. 

    The algorithm was chosen based on its ability to handle large datasets and its accuracy in predicting outcomes.

    • The algorithm was selected after evaluating its performance on similar datasets.

    • It was chosen for its ability to handle high-dimensional data and its scalability.

    • The algorithm was compared to other models and found to have the highest accuracy in predicting outcomes.

    • The choice of algorithm also depends on the

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare detail answers on all the projects mentioned in CV.

Skills evaluated in this interview

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Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Oct 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Basic Statistics and past experience
Round 3 - Case Study 

Presentation on any fo past project

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. What is the difference between linear and classification?
  • Ans. 

    Linear regression is used for predicting continuous values, while classification is used for predicting discrete values.

    • Linear regression is used when the output variable is continuous, such as predicting house prices based on features like size and location.

    • Classification is used when the output variable is categorical, such as predicting whether an email is spam or not based on its content.

    • Linear regression aims to f...

  • Answered by AI
  • Q2. Explain example of outlier
  • Ans. 

    An outlier is a data point that differs significantly from other data points in a dataset.

    • Outliers can skew statistical analyses and machine learning models.

    • Examples of outliers include a person's weight being recorded as 1000 lbs, when the average weight is around 150 lbs.

    • Outliers can be detected using statistical methods like Z-score or IQR.

  • Answered by AI
  • Q3. Explain k mean algorithm
  • Ans. 

    K-means algorithm is a clustering technique that partitions data into k clusters based on similarity.

    • Divides data points into k clusters based on centroids

    • Iteratively assigns data points to the nearest centroid and updates centroids

    • Continues until centroids no longer change significantly

    • Example: Grouping customers based on purchasing behavior

  • Answered by AI
  • Q4. Explain the metrics for classification
  • Ans. 

    Classification metrics are used to evaluate the performance of a classification model.

    • Accuracy: measures the proportion of correctly classified instances out of total instances

    • Precision: measures the proportion of true positive predictions out of all positive predictions

    • Recall: measures the proportion of true positive predictions out of all actual positive instances

    • F1 Score: harmonic mean of precision and recall, balan...

  • Answered by AI

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
-
Result
No response

I applied via Job Portal and was interviewed in Jul 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Previous experience, basic sql

Interview Preparation Tips

Interview preparation tips for other job seekers - The first interviewer seemed more focused on putting fake english accent rather than conducting a meaningful and professional interview.Throughout the session he incessantly blabbered in this fake english accent, which gave me headache. Instead of delving into technical job related inquiries he seemed more interested in discussing personal matters.this left me puzzled as i had prepared extensively for a discussion centered around my professional qualifications.

on the contrary the second interviewer was almost silent throughout entire process, giving off an air of disinterest. it was evident that he could not care less and his lack of engagement made the atmosphere uncomfortable. its disheartening to encounter an interviewers who shows no enthusiasm in accessing a candidates skills.

To add insult to injury at the end of the interview the interviewer with fake english accent commented on my apparent lack of energy, asking if i had not had breakfast. This comment was not only unprofessional but also completely unrelated to the purpose of the interview . it left me questioning the legitimacy of their hiring process and the professionalism of the individuals involved
according to my side i have answered all the questions they asked the interviewer also he said that will be also taking round 2 but guess he was just lying.
the experience has shed light on the toxic environment that may exist in this company because of such individuals. its even disheartening to think about the employees who had to work around these individuals regularly
Interview experience
3
Average
Difficulty level
-
Process Duration
Less than 2 weeks
Result
-

I applied via Referral and was interviewed in Jan 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. How did we solve business problems thru analytics stack
  • Ans. 

    We utilized our analytics stack to identify patterns, trends, and insights in data to address business challenges.

    • Utilized data visualization tools to identify trends and patterns in customer behavior

    • Leveraged machine learning algorithms to predict customer churn and optimize marketing strategies

    • Used statistical analysis to determine the impact of pricing changes on sales performance

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well on concepts
Interview experience
4
Good
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Feb 2023. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. What is difference between lstm and rnn
  • Ans. 

    LSTM is a type of RNN that addresses the vanishing gradient problem by using memory cells.

    • RNN stands for Recurrent Neural Network, a type of neural network that processes sequential data.

    • LSTM stands for Long Short-Term Memory, a type of RNN that includes memory cells to retain information over long sequences.

    • LSTM is designed to overcome the vanishing gradient problem, which occurs when training RNNs on long sequences.

    • L...

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. What are different evaluation matrix ?
  • Ans. 

    Evaluation matrices are used to assess the performance of models in data science.

    • Confusion matrix: used to evaluate the performance of classification models.

    • Precision, recall, and F1 score: measures for binary classification models.

    • Mean squared error (MSE): evaluates the performance of regression models.

    • R-squared: assesses the goodness of fit for regression models.

    • Area under the ROC curve (AUC-ROC): evaluates the perfo...

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Job Fair and was interviewed in May 2024. There was 1 interview round.

Round 1 - HR 

(2 Questions)

  • Q1. Introduction your self
  • Q2. What are the language you learned
  • Ans. 

    I have learned multiple programming languages including Python, R, SQL, and Java.

    • Python

    • R

    • SQL

    • Java

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - first prepare intruduction and what are languages we learned in academic .
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Nov 2023. There were 4 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Questions from projects which was mentioned on resume
Round 2 - One-on-one 

(2 Questions)

  • Q1. Fitment based questions
  • Q2. Explain a project
  • Ans. 

    Developed a machine learning model to predict customer churn for a telecom company.

    • Collected and cleaned customer data including usage patterns and demographics

    • Used classification algorithms like Random Forest and Logistic Regression to build the model

    • Evaluated model performance using metrics like accuracy, precision, and recall

  • Answered by AI
Round 3 - Aptitude Test 

Math, English, reasoning

Round 4 - HR 

(1 Question)

  • Q1. Asked me about expected salary
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

PYTHON,SQL,STATS,ML,DL

Round 2 - HR 

(1 Question)

  • Q1. Strenght and weakness, long term and short term goal

Interview Preparation Tips

Interview preparation tips for other job seekers - Be strong with basics and Answer confidently

Tata Motors Interview FAQs

How many rounds are there in Tata Motors Data Scientist interview?
Tata Motors interview process usually has 3 rounds. The most common rounds in the Tata Motors interview process are Group Discussion, Technical and HR.
What are the top questions asked in Tata Motors Data Scientist interview?

Some of the top questions asked at the Tata Motors Data Scientist interview -

  1. Which Algorithms you used , statistical measured , challenges , outc...read more
  2. Why a specific algorithm was used. Reasoni...read more
  3. What if questions. For eg, if you want to launch a new EV in market then what ...read more

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Tata Motors Data Scientist Interview Process

based on 1 interview

Interview experience

4
  
Good
View more
Tata Motors Data Scientist Salary
based on 22 salaries
₹6.6 L/yr - ₹21 L/yr
8% more than the average Data Scientist Salary in India
View more details

Tata Motors Data Scientist Reviews and Ratings

based on 4 reviews

3.0/5

Rating in categories

2.8

Skill development

4.1

Work-life balance

2.9

Salary

4.6

Job security

2.9

Company culture

2.3

Promotions

3.0

Work satisfaction

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