Hello,

The eligibility criteria for pursuing MSc Chemistry is that the candidate must have completed graduation with minimum 45% required marks from a recognised university

many of the universities in India accept BPharm for MSc Chemistry for examples

TIFR

IITs

IICT

ICT

IICB

If you do not wish to study in these institutes as they admit the candidate based on graduation percentage

Another way is you have to apply to other universities of non repute where you have to submit your complete syllabus copy of BPharm to Board of Studies

It is not compulsory that masters and bachelors should be done in the same field

the scope for both the fields are good choice of job opportunities should be based on your preference

https://university.careers360.com/colleges/list-of-msc-in-chemistry-universities-in-india .

Thankyou.