Hello Dear,

B.F.Sc or Bachelor of fisheries science is a UG science course for studying fisheries.

Eligibility/formality:
1.need to pass 12th stream with science subjects(PCB).

2. Age limit is minimum 17 years and max is 20 year.

3. The candidate also appears in all India level common entrance test conducted by ICAR New Delhi.

and for BE in fisheries, no age limit, your domicile should be Tamilnadu and pass out 12th with science stream(PCMB) etc.

Good luck