Hey Shashank,
As you not mentioned about the course of agriculture field which you want to pursue, I am here mentioning various colleges offering wide range of UG/PG/ Doctoral and other courses in India in the field of Agriculture are :

• Indian Agricultural Statistics Research Institute, New Delhi
• Indian Agricultural Research Institute, New Delhi
• Punjab Agricultural University, College of Agriculture Engineering & Technology, Ludhiana
• Amritsar College of Engineering and Technology,  Amritsar
• Swami Sarvanand Institute of Management & Technology, Gurdaspur
• Maharana Pratap University of Agriculture & Technology, Udaipur
• Agriculture University, Jodhpur
• Birsa Agricultural University, Ranchi
• Indira Gandhi Agricultural University, Raipur
• Bhartiya College of Agricultural Engineering, Durg
• Shree guru Govind singh Tricentenery Univeristy (SGT), Gurgaon
• Sam Higginbottom Institute of Agriculture, Technology and Sciences (SHIATS), Allahabad
• Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut
• Bihar Agricultural University (BAU), Bhagalpur
• Jawaharlal Nehru Krishi Vishwavidyalaya, Jabalpur
• RKDF University, Bhopal
• ITM University, Gwalior
• Tamil Nadu Agricultural University, Coimbatore
• Agricultural College and Research Institute, Coimbatore
• Orissa University of Agriculture and Technology, Bhubaneswar
• Assam Agricultural University (AAU), Jorhat
• KK Wagh Institute of Engineering Education and Research (KKWIEER), Nashik
• Anand Agricultural University, Anand

Good Luck!