MakeMyTrip India — no refund on cancellation of air ticket

Address:	1757 F, Sector 7C, Chandigarh, Punjab, 160019
Website:	Make my Trip

I booked an air ticket through make my trip (Mmt) and travelling date is 2 april. Now my travel plan has post poned for some reason but make my trip) mmt not paying anything if i will process cancellation further even there are still 18 days pending for my travel.

How much justify is this not to pay even a single penny to customer who didn't even travel and cancelling 18 days before the travel.
How they can justify any convience fees and tax without even providing a service to customer.
Details of tickets given below:

Pnr : swr24h
Date of travel : 2 april 2020
Booking platform : make my trip
Airline : indigo
Travel location : delhi to mumbai