Torpedos. Bigger one is named Varunastra.
Above pics are from DRDO’s outdoor section. Below are 2 pictures from L&T; section
From Wiki: Pinaka is a multiple rocket launcher produced in India and developed by the DRDO for the Indian Army. The system has a maximum range of 39-40 km, fire a salvo of 12 HE rockets in 44 seconds, neutralizing a target area of 3.9 sq. km. The system is mounted on a Tatra truck for mobility.
Pinaka saw service during the Kargil War, where it was successful in neutralizing enemy positions on the mountain tops. It has since been inducted into the Indian Army in large numbers.
From Wiki: : The Arjun features a 120 mm main rifled gun with indigenously developed APFSDS ammunition which has capability of defeating superior armor, one 7.62 mm coaxial machine gun, and a 12.7 mm machine gun. It is powered by a single MTU multi-fuel diesel engine rated at 1,400 hp, and can achieve a maximum speed of 70 km/h (43 mph) and a cross-country speed of 40 km/h (25 mph). It has a 4-man crew: commander, gunner, loader and driver. Automatic fire detection and suppression, and NBC protection systems are provided. All-round anti-tank warhead protection by the newly developed Kanchan armour is claimed to be much higher than available in present third generation tanks
From Wiki: The Shaurya missile (Sanskrit: Valour) is a canister launched hypersonic surface-to-surface tactical missile developed by the Indian Defence Research and Development Organization (DRDO) for use by the Indian Armed Forces. It has a range of between 600-700 km and is capable of carrying a payload of one-tonne conventional or nuclear warhead. It can hit targets deep inside Pakistan and China. The Shaurya missile provides India with a significant second strike capability
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.