evidence: What’s the maximum number of candidates an EVM can cater to? Each Balloting unit has a provision for 16 candidates. If the number of candidates exceed 16, a second balloting unit is linked parallel to the first one. The maximum number of candidates an EVM can cater to is 64 (That is 4 Balloting units). If there are constituencies with more than 64 contesting candidates, they must adopt the conventional voting method wiz, ballot box and ballot paper.