As you asking I am telling Defence Research and Development Organisation (DRDO) Akash Mk-II version has begun development and will be ready for a first flight in 24 months. The Akash Mk-II will be a longer-range, faster and more accurate SAM.

Akash Mk-II missile will have an intercept range of 30–35 km and increase in the accuracy of the missile's guidance system and the fire control system.

Putting a seeker on board to allow the Akash Mk-II to operate over a larger profile is one of the options being considered.

DRDO Akash missile
Type Mobile Surface-to-air missile system
Place of origin India
Service history
In service 2009-present
Used by Indian Army
Indian Air Force
Production history
Designer DRDO
Manufacturer Ordnance Factories Board
Bharat Dynamics
Bharat Electronics
Produced 2009-present
Number built 3000 missiles
Specifications
Weight 720 kg (1,590 lb)
Length 578 cm (228 in)
Diameter 35 cm (14 in)
Warhead High-explosive, pre-fragmented warhead
Warhead weight 60 kg (130 lb)
Detonation
mechanism RF proximity fuse

Propellant integral rocket motor/ramjet booster and sustainer motor
Flight ceiling 18 km (59,000 ft)
Speed Mach 3