[Resolved]  Yatra Online / Yatratrip.in — yatra looting in the name of partial refunds

I have booked a flight from yatra for my grandma from kolkata - hyderabad-kolkata with pnr number y03x7. My grandma got medical exigency and couldn't travel. When i checked in the website for cancellation and refunds (15 days earlier from travel date) it showed only 414 rs refundable against 7000 rs tickets, the tickets were partially refundable.
I don't think its a good business gesture to refund passengers so low amount, its closed to non-cancelled tickets. I just wanted to know what loss you incur by cancelling a ticket and refunding the amount (If cancelled within a reasonable time frame, i am not talking about cancelling within 24 to 48 hours).
I believe its a profit to you because you will sell the ticket anyways to someone else with a higher price so why charging both parties?
Its completely unfair to give 400 rs refund on 7000 rs ticket. I understand, the airline and yatra have polices but i think its just to make more money from helpless customers as they have to agree to your terms and conditions if someone need to travel for medical purposes.