the Red Flag of Farmer protest
Almost all other crops are more labour intensive than wheat, rice, and sugarcane. Labor has gone to MNREGA and Rs 2 kg wheat/rice. So farmers are not switching to other crops. If they switch to fruits, again labor will be a problem, and prices will crash in seasons of the respective fruits as artificial surplus will be created. Because India has no system of cold storage chains which can preserve fruits beyond the season.