NEW DELHI (Reuters) -India's Supreme Court declined on Friday to order any change to the vote-counting process, rejecting petitions seeking a return to the ballot system or to tally all paper slips generated as proof of voting for votes recorded by electronic machines.

The order comes days after India began voting in the elections on April 19, with votes due to be counted on June 4 and Prime Minister Narendra Modi widely tipped to win a rare third-straight term in the face of a struggling opposition challenge.