The live lending/borrowing price of eligible securities can be checked by visiting the NSE website (WEB)

Best Bid column = for borrowing: -  The prices under the Best Bid column show the price at which the shares can be borrowed.

Best offer Column = for lenders: The prices under the best offer column show the price at which shares can be lent.

To know about Jainam charges, see What are the Jainam’s charges for SLB transactions?