Every competitive exam requires preparation in order to crack it. This preparation should be based on proper strategies and rules. 

Some basic tips to crack the BHU entrance exam for BSc are:

• Study the previous year's papers thoroughly. You will get an idea about the important topics, the nature of questions asked, and a general pattern of the paper. BHU offers these papers on its own official website also.

• Go through the syllabus mentioned on the official website for the entrance exam.

• Buy additional books and solve them. Also, solving mocks will give you confidence.

• Your base should be clear and strong. Be well versed with numerical as well as basic formulae.

These tips combined with your own confidence and determination will give you amazing results.