There was not enough space and add to that too much crowd to capture the whole system in one frame :(

View from other side

Information from wiki: Prithvi Air Defence (PAD) is an anti-ballistic missile developed to intercept incoming ballistic missiles outside atmosphere (Exoatmosphere). Based on the Prithvi missile, PAD is a two stage missile with a maximum interception altitude of 80 km. The first stage is a liquid fuelled motor that uses two propellants and oxidizers while second stage is solid fuelled. It has divert thrusters which can generate a lateral acceleration at more than 5 Gs at 50 km altitude. Guidance is provided by intertial navigation system, mid-course updates from long range tracking radar (LRTR) and active radar homing in the terminal phase. PAD has capability to engage 300 to 2,000 km class of ballistic missiles at a speed of Mach 5.

Long Range Tracking Radar is the target acquisition and fire control Radar for PAD Missile. It is an active phased array radar having capability to track 200 targets at a range of 600 km. The Prithvi Air Defense missile has been named as Pradyumna.
Further development led to the improvement of the interception range to 80 km from the 50 km range. The improved missile will utilize a gimbaled directional warhead, a technology that until now has only been used by the US and Russia. This technology allows for a smaller warhead to destroy the target missile.

Indian strategic relations with Israel are mostly kept low-profile. But Israeli assistance was vital in one of the most vital Indian defence  projects…Ballistic Missile Defence. Following excerpt from;=7

puts more light on it 

Dr Abdul Kalam was already overseeing the Integrated Guided Missile Development Programme (IGMDP); he began feasibility studies on an ABM programme as well. The DRDO’s first challenge was to develop a radar, which could pick up enemy ballistic missiles being launched from up to 300 kilometres away. The longest range Indian radar was the Rajendra, with a range of 60 kilometres, and there simply wasn’t the time to develop a long-range radar from scratch. The only option was foreign collaboration. Dr Abdul Kalam put one of his top scientists, Dr VK Saraswat, in charge.

Dr Saraswat recounts how Russia was first approached, but the conditions in Russia — with defence R&D; at an all time low — made the DRDO reject that option. It was then that the Israeli ABM programme —- the Arrow-1, based upon the long-range Green Pine radar — caught the DRDO’s eye. A delegation was sent to Israel, but it was turned down because the Green Pine radar incorporated US technology. But Israel did agree to collaborate with India in building a Long Range Tracking Radar (LRTR), which could form the basis for India’s ABM system.

Dr Saraswat rejects reports that the LRTR in India’s ABM system is actually the Israeli Green Pine radar. He stated, “The LRTR is actually a radar built by (a DRDO laboratory) the Electronics and Radar Development Establishment (LRDE) in Bangalore, in collaboration with Israeli company, ELTA. It is not the Green Pine. The technology of the Green Pine may be built into this, but not even a single module of Green Pine is in (the LRTR). If we had done that, the Americans would have stopped the flow of technology to Israel.”

Also needed for the system was a guidance radar, to track the incoming enemy missile. LRDE, explains Dr Saraswat, has developed that radar in collaboration with French company, Thales.

(Pitures coursey: