Vishal, 19, and Rohit, 26, were arrested from north Delhi's Mongolpuri locality, a police officer said.
Police were on a lookout for the duo after they attacked two young women in Mongolpuri and slashed their faces Saturday.
"They used to target women walking alone," the officer said.
Police suspect both of them to be psychopaths as a similar incident was reported from the same locality last month.
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