New Delhi: Cricket fans on Saturday broke into unprecedented celebrations across the country, setting off fireworks, and partying hard on the streets savouring glory as India won the cricket World Cup after 28 years of long span.

As soon Team India Captain Mahendra Singh Dhoni struck a huge six to post India's historic triumph, thousands of fans burst crackers at a ground near his house at Harmu in Ranchi where they watched the final on a giant TV screen.

Wild celebrations erupted every time a Sri Lankan wicket fell and then with each boundary hit by India’s batsmen.

Cheers became louder after Dhoni completed 6000 runs in one day cricket and then reaching his half century, sending esctatic fans into a frenzy.

"This night will never to be forgotten", said Raj Kumar who stays in a neighbourhood of Dhoni.

It was Diwali once more on the streets of Mumbai, the venue of the final, as fireworks lit up the night sky and the playing of musical instruments like drums reverberated throughout the city as the "biggest party on the planet" began.

The crowds, which had vanished from the streets this afternoon to watch the match on TV, reappeared after the Indian skipper sealed the win over Sri Lanka.

Several localities of Mumbai and other major cities, including Bhopal, experienced traffic snarls as all modes of private transport thronged the streeets but few complained as the ecstasy and celebrations brushed asided all other considerations.

Cricket lovers who watched the grand finale of the two-month long tournament, at multiplexes and restaurants, chilled out with friends after the victory.

In Kolkata, thousands of ecstatic fans wearing Team India jersey waving tricolours flocked to the three-kilometre posh Park Street stretch, the city's most popular address, and broke into dance and honked their cars.

Many fans broke into tears even as they shouted 'India... India... Vande Mataram... Jai Ho...' and 'De Ghumake'...'

It was a special moment for many young fans who had not watched India's previous World Cup triumph in 1983.

"Many of us were either not born in 1983 or were not grown up to watch Kapil Dev win in the West Indies. We have grown up hearing the Kapil Devil's story from our parents.

"We waited through years, and six editions of World Cups passed by. The moment has come now," 18-year-old Neha Keshri, accompanied by her jubilant friends, said in Behala.

"Celebration has just begun... It will go on and on. We will not stop", said Bijay Dubey, a 33-year-old fan in Tollygunge.

Many fans with their faces and hair painted in saffron, white and green of the national flag mounted on the roofs of cars and jeeps and danced to the tunes of Bollywood hits like "Chak de..." and popular commercial number "de ghumakey".

Earlier in the day, India ground to a halt to huddle around televisions, praying the country's 28-year wait for a World Cup win ends by overcoming Sri Lanka.

Across the cities, businesses either shut early or remained largely non-functional as people were glued to TV sets watching the match.