The vessels in this series are 20 meters long with a beam of 5.8 meters and are armed with single 7.62 mm machine gun. They are powered by 2 Deutz-MWM TBD 234 V12 diesel engines (823 Bhp each) and 1 Deutz-MWM TBD 234 V8 550 bhp diesel engine driving 3 Hamilton 402-series water-jet, 2200 Bhp. Initially 10 vessels were ordered in September 1990 with an option for 6 more (However option was never invoked). They were built in cooperation with Sea King industries. Glass-reinforced plastic hulls were laid up by Anderson Marine, employing molds originally built by M/s Watercraft Marine, Shoreham, UK for the Royal NavyArcher class patrol vessel (P-2000). In order to meet the speed and performance requirements, vessels were configured in a triple-engine water jet arrangement and the machinery, superstructure and deck arrangement were redesigned by Amgram Ltd, Sussex, UK. The vessels were originally to have had a 20 mm Oerlikon AA forward but a remotely controlled 7.63 mm machine gun has been substituted.
The vessels are intended for patrolling the coast, interdiction of smugglers and infiltrators, and search and rescue operations. The AMPL class interceptors have a complement of one officer and eleven sailors. They have a range 600 nautical miles at 15 knots. The vessels have been based at various Indian coast guard station such as Mandapam, Mangalore, Visakhapatnam, Okha, Chennai, Kochi and Goa, and one boat was leased to Mauritius in 2001.