Barasat (WB) (Agencies): A 16-year-old boy was stabbed and kicked to death by a group of drunken youths, who were trying to molest his sister near the North 24 Parganas district magistrate's bungalow in this headquarters town.

Rajib Das, who was due to appear in this year's Examination (secondary examination), was left bleeding on the street on Monday night at a spot, 400 metres away from the DM's bungalow, by the miscreants and later taken to Barasat Hospital by passers-by, the bereaved family said.

Das was escorting his sister, who was returning from her workplace, on cycle from Barasat rail station when the incident took place.

He was later shifted to R G Kar Medical College and Hospital and succumbed to his injuries the next morning.

Four persons, who were on Wednesday detained in connection with the murder from nearby Kachhari Maidan area were being grilled.

The incident triggered widespread protest in the area with locals blocking the road alleging the security guard at DM's bungalow did not come out of the compound and rush to the aid of the boy despite pleas by the helpless sister, who worked at a call centre in Kolkata and was returning from work.

West Bengal Chief Minister Buddhadev Bhattacharjee is likely to visit the bereaved family later in the day.