Yes, you can file RTI to Bharat Electronics Limited (BEL).
Bharat Electronics Limited (BEL) is an Indian state-owned aerospace and defence company with about nine factories, and several regional offices in India. It is owned by the Indian Government and primarily manufactures advanced electronic products for the Indian Armed Forces. It has been granted Navratna status by the Government of India. Thus, Bharat Electronics Limited (BEL) is a Public Authority under Section 2 (h) of the RTI Act of 2005.
You can file RTI Applications to Bharat Electronics Limited (BEL) either Online or through Offline mode by paying the prescribed fee.
To know the further procedure to file RTI Applications for Central Government Departments please check https://onlinerti.com/