Yes, you can file RTI to Hindustan Aeronautics Limited (HAL). HAL is an Indian state-owned aerospace and defence company headquartered in Bangalore, India. It is governed under the management of the Indian Ministry of Defence.
The government-owned corporation is primarily involved in the operations of the aerospace and is currently involved in the design, fabrication and assembly of aircraft, jet engines, helicopters and their spare parts. It has several facilities spread across India including Nasik, Korwa, Kanpur, Koraput, Lucknow, Bangalore, Hyderabad and Kasaragod. The HAL HF-24 Marut fighter-bomber was the first fighter aircraft made in India.
Since it is a government-owned corporation. Therefore, it comes under the ambit of section 2(h) of the RTI Act'2005 which has the definition of Public Authority. Hence, we can file RTI to HAL.
For further assistance and to have a better understanding on filing RTI, you may visit the below mentioned link: