hello aspirant,

there is an entrance exam name ICAR  (The Indian Council of Agricultural Research) which score is most of the agriculture university or institution consider.

however the top few colleges are as follows

TAMIL NADU AGRICULTURAL UNIVERSITY - [TNAU]-, COIMBATORE

ACHARYA NG RANGA AGRICULTURAL UNIVERSITY - [ANGRAU], HYDERABAD3481

PARUL UNIVERSITY, VADODAR

PUNJAB AGRICULTURAL UNIVERSITY - [PAU], LUDHIANA

BIRSA AGRICULTURAL UNIVERSITY - [BAU], RANCHI