The two women were travelling in a car at Sevoke Road here last night when the miscreants with their faces covered by helmet came close to their car, threw acid and fled, they said.
The women and the driver of the car suffered burn injuries and were rushed to a private hospital here where the condition of the women is stated to be serious.
Assistant Commissioner of Police, Siliguri T A Mitra said the matter is being investigated.
TMC MLA of Siliguri Rudranath Bhattacharya today visited the private hospital where the two women and the driver are admitted.