hi,

tamil nadu agriculture university selects diploma in agriculture or horticulture admission based on qualifying exam, that is 10+2  score or hsc under vocation course. ranking procedure is different for 10+2 passed candidate and hsc under vocational stream, counselling system is single window counselling.

for 10+2 academic  stream,

Biology or Botany and Zoology taken together 100

Physics and Chemistry taken together 100

for hsc under vocational stream,

Biology 100

Agricultural Practices (Theory and Practicals) taken together 100