B. Tech. Food Process Engineering is a 4-year undergraduate course.

 It also teaches working out of new ways and improving the earlier ones for preserving, conserving and processing food.

There is also awareness of contamination involved with various food items and how to detect.

Also controlling the nutritional value of the food products.

Entrance examination is JEE

Few colleges are -

Karunya University

Central Food Technology Research Institute

Anand Agricultural University

G.B. Pant University of Agriculture and Technology

Good luck