Dear Rajendra,

Yes, you can go for dairy tehnology in engineering if you don't have biology as a subject.

You should have PCM as your subjects in class 12th. 

You can check the top colleges in dairy technology below

Lovely Professional University, Phagwara

Dayalbagh Educational Institute, Agra

National Dairy Research Institute, Karnal

Bundelkhand University, Jhansi

Sam Higginbottom Institute of Agriculture, Technology and Science, Allahabad

To check the complete list you can refer below link

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-India?f%5B0%5D=sm_college_course_level%3AUG&f%5B1%5D=sm_college_degree%3AB.E%20/Btech&f%5B2%5D=sm_course_offered%3ADairy%20Technology

Good Luck!!