New Delhi, Feb. 10 -- A 25-year-old helper was charred to death after a parked private bus caught fire in west Delhi's Vikaspuri in the early hours of Sunday, police said on Monday, adding that incense sticks lit inside the vehicle may have triggered the blaze. The victim, Sunil Sharma, who worked as a helper on the bus operated by a cab aggregator company, used to sleep inside the vehicle at night. After the fire was brought under control, firefighters and police found Sharma's completely charred body inside the bus, police added. Sharma, a native of Jharkhand, worked as a helper on the bus, which is owned by Vijay Kumar, 46....