Hi Nikhil,

The closing rank of BS Economics last year in IIT Bombay was 2088.

The closing rank of BS Economics last year in IIT Kanpur was 2718.

The closing rank of MSc Economics last year in IIT Kharagpur was 4499.

Keeping these stats in mind, I guess you'll get Integrated MSc in IIT Kharagpur.

I would suggest you to use college predictor so as to have a better view of all the options available to you. Below is the link of college predictor,

https://engineering.careers360.com/jee-advanced-college-predictor?icn=JEE_Advanced_clgpd&ici=JEE_Advanced_article_contmap

All the best