This decision will be implemented with immediate effect for travel on the airline's domestic network and its code share flights with JetLite, the company said.
The airlines have also provided the Web Check-In facility for enhanced convenience of the Indian armed forces and paramilitary personnel, it said.
Making the announcement, Jet Airways' Chief Commercial Officer Sudheer Raghavan said, "These very special fares for our defence and paramilitary personnel and their families, is but a small way of expressing our gratitude for their selfless service and recognition of their immense contribution to the society."
"We believe that these fares will help our defence personnel plan their personal travel in advance and help them re-connect with their friends and families easily," he added.
Under the scheme, the defence and paramilitary personnel and their families will have to carry valid identification proof while travelling.