Nokia – After Sales service

Hi my name is Nirbhay Khurana I Purchased a Nokia PHone Lumia 920 for INR 35000 a year back. ITs warranty expired in the month of march 2014.On 2nd April 2014 Some issue occured in my lumia 920 and It was not switching ON.I gone to Nokia Care (netdot solutions Tilak Nagar) West Delhi they said there is some hardware issue and were asking a huge sum of 8000 INR to repair it.On 9th April i went to Nokia Care (Manav Communication, Paschim Vihar) West Delhi they said that they will charge about INR 3850 to repair the phone I agreed to pay for my dead phone.then after 1 week on 17th April 2014 which is today , I called them they said your phone cannot be repaired and they were unable to track the problem in the handset and now saying to pick the phone from there centre. So I am helpless nobody is providing me any resolution to this problem and not providing any after sales service even when i was ready to pay for it. Please do the needful My mobile no.9911666566