Hi All,
I contacted RMV guys.
They said that body typr tranfer is ok and can be updated. and since i have not changed the engine and chasis i can run the vehicle as it tis only by informing the rmv of the color change and weight change of the vehicle. luckily seating capacity remians same.
So thanks al you guys. I gathered a lot from this thread beofre i go to rmv to talk the matter..