MakeMyTrip India — Fraud - same ticket issued to somebody else as well at the same time

Address:	Gurgaon, Haryana, 400088
Website:	www.makemytrip.com

I booked my 2 day journey to Germany online from Mumbai to Dusseldorf (DUS), Germany (via Abu Dhabi and Munich, Germany (2 stopovers)) from Make My Trip (MMT) on 11th Nov 2015.I could have taken direct cheap flight to DUS instead of two hops, but I had to deliver the parcel to my friend in Munich airport and then move to DUS as the halt was about 2.5 hrs.
On 25th @Mumbai airport, i specifically asked Etihad, to offboard my luggage at Munich and asked the boarding pass for the same. When i reached Abu Dhabi, to my surprise i was offered a direct ticket (even issued a new boarding pass to me without my concern) to Dusseldorf instead of going via Munich and the reason for the same was the flight from Munich to DUS was cancelled. When i insisted (after 30 mins debate) that i would bear the expense for Munich to DUS, they allowed me to board flight till Munich and asked me to contact travel agent (MMT) for return flight confirmation.Immediately i contacted MMT via email (and i tried contacting them through out my journey), there was no response. All i saw was somebody else's name on my return ticket back to Mumbai. Etihad refused me to issue return ticket at Germany airport and as my visa was issued for 5 days, I had to book another ticket immediately. When i came back to Mumbai, i contacted MMT to refund the amount, they are just ignoring the fact that Airline never said the flight is cancelled and instead of refunding me the amount, they cancelled it without my permission and returned me Rs 4346 which they should have refunded me Rs. 23, 000.
MMT did cheated on me and did a fraud by allocating the same ticket to somebody else as well and refusing to refund the amount. They don't even care to reply me when i was abroad and listen to me. Thankfully i did had enough credit balance and purchased another ticket, else i would have ended up in a Jail. Can you please help?
Booking Id: NN[protected]
Travel date: Nov 25 2015
Return Date: Nov 28 2015
Airline PNR: MRHLYM