One of the special all inclusive fares starting from Rs 1,999 is for travel period between October 7, 2014 to January 15, 2015, the airline said in a release.
Another 5-day special fare starting Rs 600, excluding taxes, is for travel period between January 16, 2015 to July 31, 2015.
The offer is valid for travel only on direct flights on the airline's domestic network.
The sale, which is available on first-come-first-serve basis, will not be applicable on group bookings, the release said.
Jet had last week too rolled out a special discounted ticket starting at Rs 500 for economy class travel, first for two days and then extended it for one more day, which ended on September 5.
The Mumbai-based airline had lowered its fare following budget carrier Spice Jet announcing Rs 499 fare for its domestic flights and the move was later copied by other airlines also.