It won't cost less than Rs.30,000 minimum considering other Android units for Vezel etc are more. The Oem will be 70,000. On a car which will cost 27.5 lakh after registration and taxes,
A) I personally will not sacrifice my electrical warranty
B) I will not let a J2M or Galaxy Audio na tajarbakaar electrician dismantle my dashboard and sill fittings and in the process lose clips which will fall into deep places of the dashboard while removing old unit and tolerate stupid vibrations for the remaining time I keep the car
C) No matter how good these units are, they are never ever a perfect fit into exact locking position. There is always a wierdness or gap that remains in the fitting no matter if it's companies like RockMars, AVT, Caliber, Dellson or Rockstar. They are all the same. Tried and tested.
Oem unit it is, even if it's slow or whatever. Software bugs or upgrades can be done from the company later.