Tourism industry in India is quite small compared to many other countries in terms of India’s potential and size. Which one of the following statements is correct in this regard?

The correct option is D because inadequate infrastructure is the primary bottleneck preventing India from realizing its full tourism potential. While India possesses vast cultural and natural heritage, the lack of seamless connectivity, insufficient quality budget accommodation, poor sanitation, and underdeveloped transport networks at various tourist circuits hinder the growth of the industry.

Option A is incorrect because western tourists often find India affordable and frequently travel long distances in other large countries. Option B is incorrect because India has diverse climatic zones and a defined peak tourist season. Option C is incorrect because, while some areas have security or accessibility challenges, many picturesque resorts across the country are open and accessible. Therefore, the structural deficiency in infrastructure remains the most comprehensive and valid reason among the given choices.