I need career advice

Have you thought about pursuing certifications like Tableau or advanced Power BI? It could really help you pivot into higher-paying data roles!

the first step would be to identify the roles in which you want to switch too, then research if those roles pay a higher salary than your current pay. you can use ambitionbox for this salary research. if the salary range is better and you like the role, then research if there are any specific skills you need to learn for those roles, if yes, then learn them and then start your job hunt! because 3.5 lpa after 4 years of work-ex sounds low atleast to me. Or bdw you can also consider an mba from a good bschool.

I would suggest to go for NSE or CFA or FRM certification if you are interested in banking or in risk management.

You could also try for internal department changes. Maybe venture out to BI/Product teams with the skillset you have, and see if you can land higher designation roles in different departments. 4 years of experience should really help.