The Indian Air Force on Tuesday came out with its indigenisation road map till 2025, highlighting the future technologies and new weapon system capabilities that it plans to induct. Brought out in the form of a booklet, the road map aims to help the Indian domestic defence industry to frame its plans and policies. IAF is in the process of modernising and expanding its inventory to keep up with the changing geopolitical scenario and emerging threat perception, IAF chief Air Chief Marshal Arup Raha said. He underlined that there exists a huge potential for indigenisation in the manufacturing of capital equipment and their maintenance spares. Economical and optimal exploitation of such a potential by the Indian industry would lead to greater self-reliance, he said. Besides hi-tech equipment like propulsion technology, engine systems and missile and bombs, the IAF has also pointed out that indigenisation is much-needed in smaller parts like tyre of the aircraft, batteries, bulbs, filters, fuel oil and lubricants. It also listed 173 requirements for maintenance of aircraft fleet and systems. However, the problem was that the annual requirement of most of the products listed was less than 30 units each.