Dear Yash,

You can take WBJEE or JEE main exam for taking admission in B.tech dairy technology.

You have to register for WBJEE counselling and then lock your choices with preferences of colleges according to your domain and then wait for 2-3 rounds for confirming your admission .

for more details about this course , refer to this link:

https://www.careers360.com/university/west-bengal-university-of-animal-and-fishery-sciences-kolkata/btech-dairy-technology-course

Hope this helps !

Best wishes !!