The below mail from Jet Airways is self explanatory. So please carry your ticket prints with you.
Dear Mr. Agarwal, This is to bring to your notice that effective immediately, requests received for duplicate e-ticket printouts at Airline Ticketing Offices and City Ticketing Offices in India across Jet Airways and JetKonnect will attract a fee of Rs. 50 per e-ticket (revenue / award ticket) reprint.Please note that this fee is applicable only to requests for a reprint / duplicate copy of the existing booking.JetPrivilege Platinum members are exempted from the e-ticket reprint charge. Warm regards,Kaushal SatamHead – JetPrivilege