The correct answer is A. Bengaluru, Hyderabad, Ahmedabad, Pune, Raipur, Chennai, Jaipur, Mumbai, Chandigarh, Kathmandu, Delhi and Kolkata.
Patna International Airport is an international airport located in Patna, the capital of the Indian state of Bihar. It is the 12th busiest airport in India in terms of passenger traffic. The airport is connected to several domestic and international destinations, including Bengaluru, Hyderabad, Ahmedabad, Pune, Raipur, Chennai, Jaipur, Mumbai, Chandigarh, Kathmandu, Delhi and Kolkata.
Option B is incorrect because it does not include Delhi. Option C is incorrect because it does not include Chennai. Option D is incorrect because it does not include any of the cities listed in option A.