Step 1: Background of air transport in India.
The history of air transport in India began with the first commercial flight in 1911 between Allahabad and Naini. This marked the beginning of civil aviation in the country.
Step 2: Identifying the correct year.
The first air mail service in India was inaugurated in 1911, making it the year when air transport officially started in the country.
Step 3: Conclusion.
Therefore, air transport in India was launched in the year 1911.