Can I change engine of my Scooty Pep. If so what is the cost of engine and replacement charges.

Yes, it can be changed if the old one is not working but for the exact price and availability, we'd suggest you walk into the nearest authorized service centre as they will be the better person to assist you. You can click on the following link to see the details of the nearest service centre and selecting your city accordingly - Service centre

Tvs bike engine change price