Dear candidate,
No Government or private institutions allow B.Pharmacy admission without national or state level entrance exam .
To pursue B.Pharamcy after 10+2 , you need to complete 10+2  education with minimum 50% and apply  for National or State level  Pharmacy Entrance exam .
Some Pharmacy Entrance exam are mentioned below:
MHT CET for Maharashtra State
OJEE for Odisha State
CG PPHT for Chandigarh State
UKSEEE for Uttarakhand State
KCET for Karnataka State
AP EAMCET for Andhrapradesh State

Hope it helps.
Feel free to ask if you have any further query.