India’s Defence Research and Development Organisation (DRDO) is working on an ambitious new hypersonic missile program known as Project Vishnu. This system is designed to achieve speeds of up to Mach‑8, equivalent to around 10,000 kilometres per hour, making it virtually impossible for even the most advanced air defence systems such as the American THAAD or the Russian S‑400 to track and intercept.

The missile is intended to provide India with a decisive edge in modern warfare, where speed and survivability against layered air defences are critical.

At the heart of Project Vishnu lies the Extended Trajectory Long Duration Hypersonic Cruise Missile (ET‑LDHCM). This missile is regarded as the most vital component of the program, and DRDO has already begun manufacturing specialised jigs and fixtures for booster integration.

These precision tools are essential for assembling the missile’s complex components, ensuring structural strength and performance. Hypersonic systems must withstand extreme temperatures and pressures, and the integration process is therefore a critical step in ensuring reliability.

The new missile is being described as deadlier than India’s battle‑tested BrahMos cruise missile, which demonstrated its effectiveness during Operation Sindoor last year by devastating Pakistan’s military infrastructure.

Unlike BrahMos, the hypersonic cruise missile’s sheer speed makes it nearly unstoppable, with radar systems unable to track it effectively. This leap in capability represents a significant escalation in India’s missile technology, positioning Project Vishnu as a strategic deterrent against adversaries equipped with advanced air defence networks.

A key innovation in Project Vishnu is its propulsion system. The missile will be powered by a state‑of‑the‑art scramjet engine, which distinguishes it from conventional rocket systems. Scramjet technology burns fuel by drawing oxygen directly from the atmosphere, eliminating the need for heavy oxidisers.

This makes the missile lighter, more efficient, and capable of flying long distances. In January 2026, DRDO successfully conducted a 12‑minute ground test of the scramjet engine, validating its durability and ability to maintain thrust under demanding conditions.

Early details suggest that the missile will be able to travel at speeds of up to 10,000 kilometres per hour, placing it among the fastest hypersonic cruise missiles in the world. The initial variant will have a range of up to 1,500 kilometres, with plans to extend this to 2,500 kilometres in future iterations.

It will be capable of carrying a payload of up to 2,000 kilograms, and can be equipped with either conventional or nuclear warheads, giving India a flexible and powerful strike option.

Project Vishnu represents a bold step forward in India’s missile development, combining cutting‑edge propulsion technology with extreme speed and long‑range capability. If successful, it will mark a significant milestone in India’s quest for strategic self‑reliance and deterrence in an increasingly contested security environment.

Below is a concise technical profile of the ET‑LDHCM (core system under Project Vishnu). Exact service‑level specifications are classified, so the table mixes officially reported figures with well‑substantiated public‑domain estimates.

Overview of Project Vishnu (ET‑LDHCM)

ParameterDetail
Program NameProject Vishnu (Hypersonic Cruise Missile Development Program)
Missile SystemET‑LDHCM – Extended Trajectory–Long Duration Hypersonic Cruise Missile
Type of WeaponScramjet‑powered hypersonic cruise missile (offensive, deep‑strike / SEAD‑oriented)
RoleDeep‑strike, Suppression of Enemy Air Defences (SEAD), strike against hardened / time‑critical targets
Operational RangeApprox. 1,500–2,000+ km (reported strike radius around 1,500 km)
Speed RegimeMach 5–10, with reported peak around Mach 8 (~11,000 km/h)
Warhead OptionsConventional high‑explosive / penetration warheads; nuclear‑capable architecture (reported)
Typical Warhead WeightEstimated 1,000–2,000 kg class for conventional variants
Launch PlatformsLand‑based mobile launchers; air‑ and sea‑based variants reportedly under development (multi‑platform interoperability)
PropulsionTwo‑stage concept: solid‑fuel booster followed by air‑breathing scramjet cruise stage
Duration of Sramjet BurnGround‑tested scramjet engine for up to 1,000 seconds; indicates long‑endurance hypersonic cruise
Flight AltitudeLow‑to‑medium altitude cruise (terrain‑hugging / low‑altitude dash) to reduce radar detection and interception ability
Guidance & NavigationAdvanced INS augmented with satellite‑based position updates (likely NavIC / GPS); mid‑course corrections and terminal‑phase seeker‑based guidance expected
Terminal SeekerLikely multi‑mode radar / IR‑based seeker for precision target engagement; not fully disclosed in public sources
ManeuverabilityHigh‑G, unpredictable trajectory and glide‑manoeuvres to evade current generation ABM / SAM interceptors (THAAD/S‑400‑class)
Target SetSEAD of air‑defence radars, command centres, naval fleets, hardened bunkers, and strategic infrastructure in deep‑strike campaigns
Materials & Thermal ProtectionHigh‑temperature alloys, ceramics, and thermal‑protection tiles capable of withstanding up to ~2,000 °C
Stealth & Survivability FeaturesLow radar cross‑section shaping, reduced IR signature, and erratic flight path to enhance penetration of modern air‑defence networks
Status (As of 2025–2026)Scramjet‑engine maturity demonstrated; flight‑test phase of ET‑LDHCM / Project Vishnu underway; formal induction into Indian Armed Forces not yet publicly announced

Agencies