State-run BSNL is planning to expand Wi-Fi services at more airports managed by Airports Authority of India. BSNL has already discussed the plan with top officials of Airports Authority of India and they have given nod to state-run telecom operator to expand its services.Airports Authority of India manages 121 airports in the country including 11 international airports. The AAI also has partnership with Tata Tele services for Wi-Fi services at some airports. BSNL has plans to set up 2,500 Wi-Fi centres across India by end of this financial yea