As you asking here I am telling Kolkata class (Project 15A) are a class of stealth guided missile destroyers constructed for the Indian Navy.

It comprises three ships – Kolkata, Kochi and Chennai, all of which are being built by Mazagon Dock Limited (MDL) in India, that are the largest destroyers to be operated by the Indian Navy.

Indian Navy Kolkata Class brief info
Name: Kolkata class
Builders: Mazagon Dock Limited
Operators: Indian Navy
Preceded by: Delhi class
Succeeded by: Visakhapatnam class
In commission: 2014 - present
Planned: 3
Completed: 3
Active: 2
General characteristics
Type: Stealth guided missile destroyer
Displacement: 7,400 t (7,300 long tons; 8,200 short tons) full load
Length: 163 m (535 ft)
Beam: 17.4 m (57 ft)
Draft: 6.5 m (21 ft)
Propulsion: Combined gas and gas system: Twin Zorya M36E gas turbine plants with 4 × DT-59 reversible gas turbines and 2 × RG-54 gearboxes
2 × Bergen/GRSE KVM-diesel engines, 9,900 hp (7,400 kW) each
4 × 1 MWe Wärtsilä WCM-1000 generator sets driving Cummins KTA50G3 engines and Kirloskar 1 MV AC generators
Speed: In excess of 30 knots (56 km/h)
Range: 8,000 nautical miles (15,000 km; 9,200 mi) at 18 knots (33 km/h; 21 mph)
Complement: 40 Officers and 350 Sailors
Sensors and
processing systems: IAI EL/M-2248 MF-STAR S-band AESA multi-function radar[4]
Thales LW-08 D-band air search radar
BEL HUMSA-NG bow sonar
BEL Nagin active towed array sonar
BEL Electronic Modular Command & Control Applications (EMCCA Mk4)/CMS15A combat management system
Electronic warfare
& decoys: Elbit Systems Deseaver MK II counter-measures systems and defensive aids suite
ELLORA MK I electronic support measures
NSTL Maareech Advanced Torpedo Defence System
Kavach chaff decoy system
Armament: Anti-air missiles:
4 × 8-cell VLS, for a total of 32;
Barak 8 missiles (Range: 0.5 km (0.31 mi) to 90 km (56 mi))
Anti-ship/Land-attack missiles:
2 × 8-cell UVLM for 16 BrahMos anti-ship and land-attack missiles
Guns:
1 × 76 mm gun Oto Melara SRGM
4 × AK-630 CIWS
Anti-submarine warfare:
4 × 533 mm Torpedo tubes
2 × RBU-6000 anti-submarine rocket launchers
Aircraft carried: 2 × Sea King or HAL Dhruv helicopters
Aviation facilities: Flight deck
Dual Enclosed hangar for a combination of 2 Seaking, Chetak or Dhruv helicopters