Recent 10 year tie-up with ONGC includes acquiring four first-ever civil helicopters from HAL Related posts: EC data on Lok Sabha polls: Women outshine men in exercising franchise Myriad colours of Holi symbolises unity, says Bandi Sanjay Chennai-based Photographer Documenting Manual Scavenging Wins ACJ Award Thunderstorms alert in all Telangana districts till May 26; Highest temperature down to less than 40C
