An estimated 8.4 million Indians are likely to book hotels online by 2016, up from 3.5 million in 2014, the report said.
"The deepening penetration of Internet usage and smart phones in India has lead to increased booking of hotels through online portals and applications in recent times," it said.
The report further pointed out that hotel bookings is one of the least penetrated segments within the travel categories in India and online bookings account for 16 per cent of the hotel bookings currently. This is expected to grow to 25 per cent in 2016, the report said.
With increasing online competition, popular models that have come up include online travel agents (OTAs) offering a single marketplace for all travel-related needs, and meta search engines like Tripadvisor and Kayak, that operate like travel discovery platforms.
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Among the key OTAs, Makemytrip holds 47 per cent market share, while Cleartrip and Yatra hold a 20 per cent share each, followed by Goibibo, the report said.
Further, online accommodation reservation services like Oyo Rooms, Stayzilla are gaining popularity, it added.
The report cited that the gain in popularity of these channels meant that the number of bookings routed through OTAs increased, thus impacting hotel revenues.
Therefore, to promote choice and avoid unfair competition, from 2002-03 onwards, majority of global hospitality majors started implementing strict rate parity rules regardless of distribution channel, the report said.