Hey there

In case of economics honours I'll advise you to join Xavier's as it is good in all aspects that is placements after bachelor's. Jadavpur University seems to have very good reputation but not in case of economics honours so if you don't have other good choices like iit Kharagpur then join Xavier's.

Check about Xavier's

https://www.google.com/url?sa=t&source=web&rct=j&url=https://dqxeclau.top/colleges/st-xaviers-college-kolkata/bsc-economics-hons-course&ved=2ahUKEwjSnNihq5zlAhUEjeYKHaxMBQcQFjABegQIBRAB&usg=AOvVaw38PhvyMEvu4z1EWc4g4kKV&cshid=1571076303989

Good luck