BENGALURU, June 12 -- A six-year-old girl was allegedly killed after spilling ice cream inside a luxury car, according to Bengaluru police, who say a month's long investigation uncovered a homicide that was initially presented as a medical emergency.

The case, which began with the child's death at a villa in Bengaluru's Seegehalli area on March 25, has now resulted in the arrest of her mother, Priyanka P, and her live-in partner, Mohan J Mahaningappa. Police allege the pair attempted to conceal the circumstances of the death before forensic evidence and witness statements pointed investigators in a different direction.

Kadugodi police arrested Priyanka on Thursday in Hassan district. Mohan, a real estate businessman, had already been ta...