The police have written letters to magistrates of neighbouring districts in Uttar Pradesh and Haryana, requesting them to close liquor vends on April 14 and 15.
The move comes after the police received information that political parties might give coupons to voters to buy liquor from neighbouring states.
The MCD elections will be held on April 15
Cracking down on the supply of illegal liquor during elections, the police have so far arrested 68 persons and seized 4781 bottles from them.
Twenty-one vehicles used for transporting liquor have been impounded.
"Political parties have tied up with liquor vends across the border. They paid them money in advance and asked them to give liquor to people who show coupons issued by parties. To buy voters, parties are distributing coupons to residents who cross the border to buy liquor," a senior police officer requesting anonymity said.
"Apart from this, our teams are keeping a watch on the movement of illegal liquor," the officer said.
Police said candidates issue coloured slips to voters. The colour code indicates the size of the bottle to be handed over to the voters.