How to sell stocks bought using MTF at Jainam?

At Jainam there is no need to unpledge MTF stocks before selling.

You can directly sell MTF holdings without placing an unpledge request to Jainam. However, sale proceeds from selling MTF - funded stock will be used to recover the funding amount on such stocks and the remaining sales proceeds will only be available on the T + 1 day for withdrawal or further trades.