India has commissioned its first indigenously-built aircraft carrier, Vikrant, at a ceremony in the southern state of Kerala. The BBC's Jugal Purohit took a tour of the vessel ahead of its induction into the Indian navy.
On Friday morning, the 45,000-tonne Vikrant got the prefix INS (Indian Naval Ship) at a formal commissioning ceremony, attended by Prime Minister Narendra Modi.
It is a moment that was 13 years in the making.
The vessel - 262m (860ft) long and almost 60m (197ft) tall - is the first aircraft carrier India has designed and built on its own. It has the capacity to hold 30 fighter planes and helicopters.
India's other aircraft carrier, INS Vikramaditya, can carry more than 30 aircraft. The UK Royal Navy's HMS Queen Elizabeth can carry about 40 and the US Navy's Nimitz class carriers can accommodate more than 60 aircraft.
Vikrant, which cost around 200bn rupees ($2.5bn; £2.1bn), was expected to be inducted into the navy by 2017. But the second phase of its construction was beset by delays.
But the ship's commissioning is still a historic moment for India, which will now join a select group of countries capable of building such a vessel. It's also a shot in the arm for Mr Modi's plans to boost domestic defence manufacturing.
The name 'Vikrant' (which means courageous) is also special - it was what India's first aircraft carrier, bought from the UK and commissioned in 1961, was called. The first INS Vikrant was a major symbol of national pride and played an important role in several military operations - including the 1971 war - before being decommissioned in 1997.
After Friday's commissioning, the new Vikrant will sail across both Indian and international waters, accompanied by a fleet of frigates, destroyers and submarines to protect it.
Inside the ship
At present, Vikrant is at the government-owned Cochin Shipyard in Kerala state - where the ship was built and where the commissioning ceremony was held.
Once it's in service, it will eventually be the workplace - and home - for 1,700 crew members.
Ahead of the ceremony, there were technicians everywhere - fixing cables, polishing the interiors and making sure everything was in shape for the commissioning.
Teeming with the crew and journalists and visitors, the insides of the ship felt like an unending complex of noisy workshops.
The navy plans to test intensive flying operations from the ship later this year.
"Our flight deck size is nearly 12,500sqm - almost as big as two-and-a-half hockey fields - and we can operate 12 fighter planes and six helicopters at once," said Lieutenant-Commander Siddharth Soni, the flight deck officer.