Rana Indrasinh Khumansinh, a resident of Lakhtar in Surendranagar district, hanged himself from a tree in his farm last evening, police said.
He owned 80 acres of land and cultivated cotton but the crop failed due to deficient rains following which he took the extreme step, police said.
At least 16 farmers have committed suicide this month in Saurashtra, a coastal region comprising seven districts, due to crop failure.