If you are looking to find the best travel API provider in India, you should start with a question first. Are you IATA or Non IATA agency? If you are IATA agent, its always better to go with GDS directly. For LCCs, you can definitely contract a LCC API provider / aggregators. If you are a Non IATA travel agency, then you can search among the third party API providers. There are many good travel API providers in USA like travelomatix, TBO etc. PROVAB does provide top travel contents / deals on flights, hotels, transfers, sightseeing and car rental to travel agents in India.