Bajaj Auto — No vehicle registration no number rto

I am vishal shankar chavan a resident of airoli, NAVI Mumbai 400708. I purchased avenger 220 from guru nanak automobiles on 29th march 2019. I have taken loan against vehicle for this bike . The bike was given to me but the registration of the vehicle from the Rto was pending. I constantly visited gurunanak automobiles for the early process of registration. But there was no response. There was a news in the locality that gurunnanak automobiles was a scammer and he shuts his business from airoli and got shifted to thane. At the time of purchase I was provided with a bill and insurance papers.While I was riding my motorbike a week ago the right foot brake or the brake on the rear wheel broke. When I had a closer look the part was already welded. I belong to a middle class family and a sum of 116000 rupees is a huge amount for me. Due to the registration I am unable to ride my bike and cannot think of buying a new bike. I need my money back or a new bike from Bajaj motors. And I have also filed a complaint in the local police station.

I have attached the tax invoice for reference
Bike Avenger 220 street black
BSIV
Regn. No.REGN NO NOT ASSIGN Chassis No.MD2A22EY8JCH59467 Engine No.PDYCJH04519