The Motor Vehicles Act, 1988
16.
Revocation of driving licence on grounds of disease or disability.
Notwithstanding anything contained in the foregoing sections, any
licensing authority may at any time revoke a driving licence or may
require, as a condition of continuing to hold such driving licence, the
holder thereof to produce a medical certificate in the same form and in the
same manner as is referred to in sub- ection (3) of, if the licensing
authority has reasonable grounds to belive that the holder of the driving
licence is, by virtue of any disease or disability, unfit to drive a motor
vehicle and where the authority revoking a driving licence is not the
authority which issued the same, it shall intimate the fact of revocation
to the authority which issued that licence.