I think people have got a wrong idea about the legal side.
Left hand drive cars can be brought and can be registered here. There is not one law or amendment in Indian motor act 1957which says that a left hand driven vehicle cant be registered here or driven in India.
You can send a RTI application (Right to the Information act) to RTO (Regional Transport office) and enquire as to how many left hand driven vehicles they have registered in their office. You know what, you will get the results as Zero. Becasue, even the registration papers will not specify a category if that's a lefthand or righthand driven vehicle. Go, check your RC books if you have any doubts.
Yes, it is legal.
Yes. Many cars from continental Europe travel in the UK.
Only if you know how to drive them
You usually require both hand, and your feet, when you drive. It would not be practical or legal to drive withonly your left foot.
Right hand drive cars are legal in the US. Additional mirrors to compensate for the position of the steering wheel may be required, however.
You will need to contact the DMV for your state, you may need a permit.
Pakistan, India, UK , Bangladesh etc