Hey as per your demand here I am providing you details of Akash (missile) in DRDO

About Akash (missile)
Akash is a medium-range mobile surface-to-air missile defense system developed by the Defence Research and Development Organisation (DRDO), Bharat Dynamics Limited (BDL) for Missile Systems, Ordnance Factories Board and Bharat Electronics (BEL) for other Systems in India.

About DRDO
The Defence Research and Development Organisation is an agency of the Republic of India, charged with the military's research and development, headquartered in New Delhi, India

Missile
Akash is a surface-to-air missile with an intercept range of 30 km
It has a launch weight of 720 kg, a diameter of 35 cm and a length of 5.78 metres. Akash flies at supersonic speed, reaching around Mach 2.5.
It can reach an altitude of 18 km and can be fired from both tracked and wheeled platforms
An on-board guidance system coupled with an actuator system makes the missile maneuverable up to 15g loads and a tail chase capability for end game engagement.

Propulsion
The Akash, like the Russian 2K12 Kub (SA-6 Gainful), utilizes an integrated ramjet-rocket propulsion system, which provides thrust for the missile throughout most of its flight.
Because this missile has an integrated ram-rocket, maneuverability is highest.
The engine is 'on' throughout the flight