A tourist is a passenger (either an Indian or a Foreign Passport holder)
a) who is not normally a resident in India;
b) who enters India for a stay of not more than six months in the course of any twelve months period for legitimate non-immigrant purposes, such as : touring, recreation, sports, health, family reasons, study, religious pilgrimage, or business.
NOTE : These rules are applicable to Indian Citizens who are staying/working abroad on a visa and coming to India on a short trip with the intention to return abroad and foreign citizens of Indian / Foreign origin coming to India on a short trip with the intention to return abroad. A short trip is as defined at point (b) above.