The New India Assurance Company Limited — mobile phone sent for repair under accidental insurance not returned

Address:

New Delhi, Delhi, 110088

I had purchased accidental mobile insurance for the handset, samsung 7edge model sm - g935f imei ([protected]) from rishabh communications on 09/06/2016 that was insured by "the new india assurance company limited" in association with "yms mobitech". I required repairing damaged mobile & so i contacted "appsyouneed.in" customer care as told by the team of "yms mobitech". An executive contacted me to know about damage details & soon they sent an executive to pick up my mobile for which he provided me receipt too.
After that, there was no contact from there side for almost 5 months. I visited there official address & they said that your handset in is rajasthan for repair collect it after 5-6 days.
I again visited there official address in noida sec 63 after 6 days but the company has vanished from that place.
I have no trace of my mobile neither the insurance company is responding to its status neither taking care of my loss.
Handset cost was around 60k.