DEFECTIVE ROYAL ENFIELD STANDARD EFI protected (Black)

Hi, i bought a brand new bike from NIKHIL MOTORS, PORT BLAIR , ANDAMAN & NICOBAR, a Dealership of ROYAL ENFIELD on protected/protected/protected. for Rupees 1,protected,protected/-. After only one month of purchase and with only protected kms in odometer, the bike started giving trouble. Engine started missing a lot and emits continuous black smoke with strong smell of petrol from the engine. I approached the Dealership for rectifying the defects. Dealership made me to visit six times for the same issue. Repairing was done on trial and error basis but the problem was never solved properly and efficiently. I emailed ROYAL ENFIELD customer support for my issue on protected/protected/protected, but till date problems are not rectified. I presume the bike is having some major manufacturing defect since technicians at Dealership are not able to diagnose the fault. Need your help. Thanks