Chinna Vadhiyar
Chinna Vathiyar (original)
A professor develops a formula that enables the soul to move out of a body and into the closest dead species. He accidentally exchanges bodies with a college student who refuses to switch back.
Starring Prabhu, Ranjitha, Khushboo, Nizhalgal Ravi, Goundamani, Senthil, Kovai Sarala, Delhi Ganesh, Bhagyasri, Chinni Jayanth
Watch "Chinna Vadhiyar" on Amazon released in 1995. It's a comedy and science-fiction movie, and has a rating of 5.7 out of 10 from Imdb which is fairly okay for this kind of movie, and is currently only available for purchase or rent.