Science

Dear Aayan, First and foremost, if you didn't study Chemistry in your 12th grade, it's highly likely that you didn't study Physics and math either, and these subjects are crucial for getting into an engineering programme. There aren't many differences in the eligibility requirements, but let's start with India to address your question: Except for bioengineering and agricultural engineering, every government college in India will need you to take Chemistry in order to enroll in an engineering programme. Many universities, like Chandigarh University, would accept students in any engineering specialisation as long as they have taken both Physics and math as required courses. But taking Chemistry is not required.

Latest Cutoff Information for pH.D in Chemistry at Government Art College
Candidates are eligible to continue on to do research leading to the Ph. D. Degree in the same Institution in an integrated programme if they have successfully completed the M.Phil. course work with at least 55% aggregate marks or its equivalent grade "B" in the UGC 7-point scale (or an equivalent grade in a point scale wherever a grading system is used). According to the Commission's judgement from time to time, applicants who fall under the SC/ST/OBC(non-creamy layer)/differently-abled and other categories of candidates may be given a 5% mark relaxation from 55% to 50%, or an equivalent grade relaxation.
Total Ph. D site in chemistry is 45.
Latest Cutoff for General - 120
And for SC, STO BCC - 90
I hope are you helpful form this.
Thanks