Hello

IIT Kharagpur has Agriculture and Food Engineering Department. The Department offers the following specializations at the M.Tech level

AG1- Farm Machinery and Power
AG2- Land and Water Resource Engineering
AG3- Food Processing Engineering
AG4- Agricultural Biotechnology
AG6- Agricultural Systems and Management

GATE exam is conducted for admission to M.Tech programmes offered by IITs. You can go through the link below and check the previous year GATE cutoff for reference

 https://engineering.careers360.com/articles/gate-cutoff-for-iit-kharagpur

Good Luck!