The Airports Authority of India (AAI), which maintains the country’s civil aviation infrastructure, is set to hand over Jaipur, Guwahati and Thiruvananthapuram airports to the Adani Group.

AIA is expected to hand over these airports to the group by the middle of next month after signing a concession agreement, The Times of India reported.

AAI chairman Arvind Singh confirmed that the signing of the concession agreement will take place by 25 January 2021.

Adani Group previously secured bids to operate six AAI airports for 50 years on a purchasing power parity (PPP) basis.

In August this year, the group assumed the responsibilities of operations, management and development of airports at Mangaluru, Lucknow and Ahmedabad from the AAI.

In addition to these six airports, AIA is looking to operate more airports on PPP basis. The list includes names of Varanasi, Amritsar, Bhubaneswar, Raipur, Indore, and Trichy airports.

In September this year, the AAI announced plans to upgrade runways at seven airports including Jammu, Kolhapur, Jabalpur, Barapani, Kadapa, and Tirupati.

In September, AAI made an investment of Rs12.17bn ($165.6m) for the modernisation and upgrade of Patna Airport in the state of Bihar.

Meanwhile, the Adani Group is set to take over Mumbai International Airport and the upcoming Navi Mumbai Airport, following its purchase of a controlling stake from current promoter GVK Group.

With seven functional airports and an upcoming one in its portfolio, the group is said to become the biggest private airport operator in the country with connection to the number of airports handled.

Last year, Adani Group announced the formation of a new entity to manage its airport businesses in India and abroad.