Interview process duration

[tobe]

I am scheduled to appear for my L1 B (Blanket) visa interview at the Chennai Consulate soon.
The interview report time is 9.45 am.

What is the average duration for the complete process right from entering the consulate to exiting it post the interview. Will I be able to complete the process in time to catch a 15.35 pm flight?

Thanks in advance

[shervin143]

It will be anywhere between 2-3 hours.