Techno Air Source in India refers to companies like Techno Aircon Industries Pvt. Ltd., established in 1998, which manufactures room air conditioners and fin & tube heat exchangers as an OEM/ODM for HVAC systems, and Techno Power Aircons, based in Chennai since 1982, which provides sales, installation, and maintenance of air conditioning systems including VRF/VRV units, split ACs, and ductable ACs, dealing with top brands like Daikin, LG, and Voltas, offering reliable air solutions for residential, commercial, and industrial applications.