They broke their strike sipping juice and water offered by DU Vice-chancellor Prof Akhtaruzzaman soon after the announcement deferring the elections.
Speaking on the occasion, the DU VC thanked the EC for its decision, saying good senses have finally prevailed on them.
Chief Election Commissioner KM Nurul Huda told reporters around 9pm that the DSCC and DNCC polls will be held on February 1 instead of January 30.
At least 15 students fell sick on Friday and Saturday while fasting unto death to press for the demand.
Earlier, police foiled a march of the students towards the Nirbachan Bhaban on Wednesday.
The protesting students had announced the march programme from a road blockade at Shahbagh soon after the High Court on Tuesday turned down a writ petition seeking deferment of the January-30 elections.