B.Sc

First of all, complete your graduation (B.Sc. in Chemistry)and enrolled for PG course then you are eligible for appearing for CSIR NET exam in Result awaited category. you will get your CSIR NET qualifying certificate after submission of your M.Sc. mark sheet. http://csirhrdg.res.in/notification_main_dec2017.pdf
on above link you will get answer for every question regarding to CSIR NET exam.

Vishal, I have already replied to your same query posed in the trail.

Prepare from general agriculture objective books and ICAR UG preparation books.

No, Diploma is not necessary to get admission in B.Sc nursing in Canada. Prerequisites Needed to Study Nursing in Canada: To be admitted to either a Diploma or undergraduate degree programme (BN or B.Sc in nursing, students must have completed high school with English, mathematics, biology, and chemistry, with at least a C average. Physics is recommended. For those without the necessary prerequisites, many schools offer a pre-nursing year. Regards.

Prerequisites Needed to Study Nursing in Canada:
To be admitted to either a Diploma or undergraduate degree programme (BN or B.Sc in nursing, students must have completed high school with English, mathematics, biology, and chemistry, with at least a C average. Physics is recommended. For those without the necessary prerequisites, many schools offer a pre-nursing year. Regards.

You can go for chemistry Diploma.

You can get direct admission based on your merit list.

You can go for M.Sc in biotechnology and later can also go for your M.Tech too in biotechnology or the best option would be is going for Ph.D.