hi,

More Than 50%  aggregate marks is required in B.sc. or equivalent examination of a recognized university.And should have botany or plant science as one of the subject.

for PG courses, it will be based on the merit in the qualifying examination. Qualifying exam will mean average of three years marks of B.Sc. If  the final year exam result is not out, the average of last two years marks will be counted for provisional selection of candidates.