India's missile programme has always been a topic of discussion, which is limited mostly to missiles, which can travel several hundred to several thousand kilometers. Modern warfare isn't about firing missiles alone. It is also about protecting oneself from them. Ballistic missiles, cruise missiles, UAVs, and other airborne threats are becoming increasingly fast and complex, requiring the country to develop an effective missile shield to protect its airspace.
India's missile shield, therefore, is not a system by itself but a blend of both native and foreign-made technologies aimed at intercepting enemy targets. Surveillance radars, interceptor missiles, and advanced control centers are some of the elements used to create a network to counter such threats and protect strategic military installations and other vital areas of the country.
What is India's missile shield?
'Missile shield' gives the idea of a single super-weapon system that will be able to knock out all attacking missiles. But it is rather a set of different defense systems working together. While some of them intercept the attacking high-speed ballistic missiles, others target planes, cruise missiles, or UAVs.
It works like a chain of security checks, and if the first checkpoint fails to stop the threatening object, the second one takes up its turn. It significantly increases the chances of successful protection from attacks.
India has been developing such a defensive capacity for more than two decades by using the combination of local technologies and some foreign ones.
Why India needed a missile shield
India's security environment has changed significantly over the years. Ballistic missiles are now more accurate than ever before, cruise missiles can fly close to the ground to avoid radar detection, and drones have emerged as low-cost weapons capable of striking military installations and critical infrastructure.
Relying only on retaliatory strikes is no longer considered enough. Military planners also need the ability to stop incoming attacks before they reach their targets. That requirement led DRDO to begin work on an indigenous Ballistic Missile Defence programme in the early 2000s, with the aim of protecting key strategic locations across the country.
Since then, the programme has expanded steadily, with new radars, interceptors and air defence systems being added as technology has advanced.
How the entire system works
A missile defence system works much like air traffic control, except its job is to identify hostile threats instead of civilian aircraft.
The process begins with long-range surveillance radars that continuously monitor the skies. Once an incoming missile or aircraft is detected, advanced command-and-control systems quickly calculate its speed, altitude, direction and likely impact point.
Based on this information, the system selects the most suitable interceptor. The interceptor is launched and receives continuous guidance updates until it reaches the target, destroying it either through direct impact or a proximity detonation, depending on the interceptor being used.
The entire engagement usually takes place within a matter of minutes, leaving very little room for error.
The eyes of the missile shield
Every successful interception begins with detection. Without reliable radar coverage, even the most advanced interceptor missile would be ineffective.
India operates long-range tracking radars capable of detecting incoming ballistic missiles hundreds of kilometres away. These radars continuously gather information and send it to integrated command centres, where data from multiple sensors is combined to create a real-time picture of the airspace.
The earlier a missile is detected, the more time operators have to decide how best to respond. That extra reaction time can be critical during an actual attack.
Interceptor missiles form the core
The main elements of India’s native missile defense system are interceptor missiles which have been built as a part of the DRDO’s Ballistic Missile Defense program.
Prithvi Defense Vehicle (PDV) is an interceptor that is meant to intercept a ballistic missile at high altitudes, including close to the outer edge of the atmosphere. Endo-atmospheric interceptors have been designed for those missiles which fly at lower altitudes.
Through many years, there have been a number of tests conducted by DRDO to intercept the ballistic missile targets.
Where the S-400 fits in
The induction of the Russian-made S-400 Triumf has added another important capability to India's air defence network.
Although the S-400 is not a dedicated ballistic missile defence system, it can engage aircraft, cruise missiles and certain types of ballistic missiles over long distances. Its powerful radar can track multiple targets simultaneously while directing different interceptor missiles against them.
Rather than replacing indigenous systems, the S-400 complements them by adding another layer of protection within the overall defence architecture.
Akash protects the lower layers
Not every threat comes from hundreds of kilometres away. Aircraft, helicopters and drones often operate at much lower altitudes, requiring a different kind of defence.
This is where the indigenous Akash missile system becomes important. Developed by DRDO, Akash is designed to defend military formations and strategic installations against a range of aerial threats.
India is also developing Akash-NG, an upgraded version that offers improved seekers, better accuracy and longer engagement ranges, making it more effective against emerging threats.
New threats require new solutions
The recent conflicts across the globe indicate that drones and cruise missiles at times can prove to be difficult to handle, just like ballistic missiles. They are smaller and travel at a much lower altitude and are capable of reaching the target areas from any direction.
To counter the emerging threats, India is planning to acquire the systems against drones, electronic warfare equipment and advanced surveillance radar systems. These systems would allow for detection, tracking, jamming and destruction of the UAVs, even before they reach any important place.
In other words, the objective is to create a system that could respond to all types of aerial threats, rather than concentrating on only the ballistic missiles.
Can it stop every missile?
The simple answer is no. There is no country in the world which has a missile defence system which offers complete protection from any form of attack. Modern day missiles could have decoys or may take evasive maneuvers or even travel at hypersonic speed. Thus, intercepting them is not easy at all.
This is the reason behind having layered missile defence systems instead of having a singular system.
The next phase of India's missile shield
The development of the missile defence system of India is yet to mature. DRDO is continuing its research in developing improved interceptors and radar surveillance and command and control systems which can process vast data in real time.
Future developments will be centered towards the defence of hypersonic missiles, agile ballistic missiles and huge swarms of drones. Use of artificial intelligence and network-centric warfare technology would play a crucial role in decision-making in the future.
A growing pillar of India's national security
The Indian Missile Shield has developed into one of the key defences that India possesses. The system does not involve the use of one particular weapon or radar but rather combines several systems that act as a network in protecting from diverse aerial attacks.
With evolving technology, there is now a change in the way the country has been developing its Missile Shield. Not only has it concentrated on the development of more advanced missiles, but it also ensures that India is in possession of the means to detect, track and intercept any threat through the use of missiles.