MakeMyTrip India — Refund of travel package amount because of Covid19

Address:

MakeMyTrip India Pvt. Ltd., DLF Building No. 5 Tower B DLF Cyber City, DLF Phase 2 Sector 25, Gurugram, Haryana 122002, India

I booked a singapore holiday packagefor my parents in the month of december 2019 for travel dates in last week of february 2020 with makemy trip india.
I made an advance payment of 57000
And further because of initial covid situation i got the dates changed for end of april 2020 and paid 23000 extra as demand by the makemytrip india company.
I am following up with there agents from past 3 month but not getting any clear response. I need to get my money back soon.
Please help me file a consumer complaint.
Regards
Rishabh khattar