Diploma in pharmacy is take 2 years , it is full time course . Student should have passed in 10+2 with PCM / PCB / PCMB for applying d.parm the fees takes 1.6 lakhs.
For this exam preparation .
Go for the syllabus.
Make a routine.
Give mock test .
Practice test papers
Follow the books
Clear your doubt from youtube.
Study daily.
See the exam pattern.
Answer the previous exam papers timely.
Study more where you are weak .


For more information you can visit here
https://www.careers360.com/university/sam-higginbottom-institute-of-agriculture-technology-and-science-allahabad/dpharma-course

Thank you. I hope this answer helps you.