Rocket Anti-Submarine
Almost all of the warships of the Indian Navy are provided with the 213 mm RBU-6000 antisubmarine rocket launcher. Twelve launch barrels are placed in a horseshoe pattern and are remotely controlled by a fire control system using data from SONAR devices.
The RGB-60 depth charge is used by the RBU-6000. This is a 25 kg high explosive warhead, impact fuse, and lightweight unguided depth charge. When there is a fire, nearby depth charges are set off. enhancing the concussive impact. A clever 90R self-guiding depth charge with a shaped charge warhead that can penetrate double-hull submarines is used in the more current RPK-8 upgrade. The RPK-8, unlike the RBU-6000, can also be utilized for torpedo defence.
Unguided rocket with a solid propellant engine, the RGB-60. A 23 kilograms warhead is carried by the rocket. destroys targets at a depth of 10–500 meters and has a maximum range of up to 5.500 meters. The rockets can be launched at a rate of 2.4 rockets per second in salvos of 1. 2. 4. 8 or 12 rounds. The launcher is automatically refilled with individual rounds fed into it by a loading system from the magazine below deck. Each launcher typically holds 72 or 96 shots in its magazine. In addition, it can be applied to shore bombardment. It is believed that the RBU-6000 system was the final bombardment. The RBU-6000 system is regarded as a warship's final line of defence against enemy submarines.

Rocket with a Long Range for Anti-Submarine
to increase the firepower of the Indian Navy. An improved anti-submarine rocket known as the Extended Range Anti-Submarine Rocket has been created by two DRDO laboratories, ARDE and HEMRL. (ER-ASR). The rocket is intended to take the place of the current Russian-made rocket guided bombs. (RGBS).
The new rocket has a 8900 meter range, which is a significant improvement over RGB-60 rockets already in use. The new and improved propulsion technology is used to attain the increased range.

It is a 212mm single stage solid propellant propelled rocket with fin stabilization. It weighs 113.5kg and is 1850mm long. There are two firing modes for the rocket, known as Ballistic and Ballistic2. Ballistic 1 is short-range shooting, with a rocket's maximum range exceeding 3 km, and Ballistic 2 is long-range fire, with a maximum rocket range beyond 8 km. The rocket can fly for 27 seconds in Ballistic 1 mode and 45 seconds in Ballistic 2. The new ER ASR can transport a 25KG warhead 500 meters below the surface. It can be fired from RBU-6000 launchers that are already in use. incorporated in practically all of the Indian Navy's warships.

Construction Status
  • On April 3rd 2023, the ER-ASR was successfully test-fired for the first time from the Navy's INS Chennai. The performance of the rocket system was assessed during the first tests, both at short and long ranges.
  • The Defence Research and Development Organization's (DRDO) two Pune-based laboratories developed the Extended Range Anti-Submarine Rocket (ER-ASR). (DRDO).