Prime Minister Narendra Modi launched an early-morning Twitter blitz yesterday calling directly on Bollywood and sports stars and others to urge Indians to vote in the country's upcoming mammoth elections.

In 29 rapid-fire tweets, Modi tagged cricketers Virat Kohli, Mahendra Singh Dhoni and Bollywood actors Ranveer Singh and Vicky Kaushal, asking them to inspire others to exercise their franchise in the world's largest democracy.

"Dear @msdhoni, @imVkohli and @ImRo45. You are always setting outstanding records on the cricketing field but this time, do inspire the (1.3 billion) people of India to set a new record of high voter turnout in the upcoming elections," one message ran.

"When this happens, democracy will be the winner!"

Modi, who has a massive 46.3 million followers on Twitter, also reached out to his political rivals, including Rahul Gandhi who heads the centre-left Congress party.

"A high turnout augurs well for our democratic fabric," he said in his tweet marked to Gandhi.

In his tweet to Bollywood stars Singh and Kaushal, Modi picked dialogues from their hit movies "Gully Boy" and "Uri: The Surgical Strike" and said they could motivate youngsters to use their voting right.

"It is time to tell them (youngsters): Apna Time Aa Gaya Hai (our time has come) and that it is time to turn up with high Josh (fervour) to a voting centre near you."

Results from the election are due May 23.