No shift timings in reality.
Your boss may call you in midnight & ask for any professional favour & if you deny you are gone.
You could be asked to work on weekoff for 3-4 hrs.
You may be asked to extend shift without OT.
According to AmbitionBox, 100% of the InGnius employees reported a notice period of 2 Months.This is based on 1 response on AmbitionBox in last 2 years.