9w will honor international baggage allowance. this is the extract from their website on the outward segment. however, inward also people have been given this benefit

"
Note: For all tickets purchased in India, international baggage allowance will apply on routes wholly within India on Jet Airways / Jet Airways Konnect flights when the guest has a connecting international flight of any airline on a separate ticket. The below conditions have to be met;

* The stopover should not exceed beyond 24 hours
* The guest should provide proof of such international travel

Excess baggage charges will be applicable if the guest fails to produce proof of international travel. "