Indian economy is a mixed has three sectors.they are primary sector,secondary sector,third sector. primary sector includes agriculture activities, secondry sector includes industrial or manufacturing activities,third sector includes service activities. by this three sectors we can calculate gdp ,ndp. primary sector most profitable sector in india,but now a days primary sector is declining.service sector is increasing day by day. the service sector is the main profitable sector in developed countries.

the first answer which came 2 u was also from INTERNET