Hello shreyashkshirsagar8441 , From some research on internet I found that yes you can do btech food processing course with PCB (biology) in 12th and some colleges for food processing in maharastra are:
https://university.careers360.com/colleges/list-of-degree-colleges-in-india?stream=Engineering%20and%20Architecture&state=Maharashtra°ree=B.E%20/B.Tech&branch=Food%20Processing
Hope it will be helpful for you :)
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