Gehlot in a condolence message said that excellent services by Mehta in the field of diplomacy and education would always be remembered.
Mehta, a Padama Bhushan Awardee, passed away at the age of 90 on Thursday in Udaipur.
He served as foreign secretary between 1976 and 1979.
Born in 1922 to Mohan Singh Mehta, a member of the Constituent Assembly of India in 1947, Mehta was educated at Allahabad and Cambridge Universities.
Mehta was Charge d'affaires China (1963-1966) and High Commissioner to Tanzania (1970-1974). He was Associate at Harvard (1969 and 1980) and Fellow at Woodrow Wilson Center, Washington in 1981.