Well,
Agricultural courses trains students in agricultural science and it's allied areas.the training is all about applying concepts of science, technology, chemistry,and biology to boost agricultural productivity.
In India , agricultural courses are available in the following formats

• Bachelor's degree courses
• Diploma courses
• Certificate courses
• PG diploma courses
• PG certificate courses
• PhD programs

Certificate , vocational, diploma and bachelor's  degree  courses are UG level courses . students who are passed 12 th are eligible to pursue these courses.

Dear student,
Agriculture courses after 12th are :
1) Bachelor's Degree courses:- Here are some of the bestBachelor's Degreecourses  that is B.E. or B.Tech.inAgricultural Engineering. B.E. or B.Tech.in Agricultural Information Technology.
2) Diploma courses:- Here are some of the bestDiplomacourses Diploma in Agriculture.Diplomain Dairy Technology.DiplomainHorticulture.
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Dear aspirant,
After 12th you can choose agbsc course .
For any further queries drop a comment below
Good luck
Thank you