After killing her mother, Sen packed the body in a suitcase with her photograph and came to the Mico Layout police station. Subsequently, a murder case was registered by a police sub-inspector, Baba added.
At least two Karnataka State Road Transport Corporation buses and one of Bengaluru Metropolitan Transport Corporation have been set on fire, they said.
Two miscreants attacked the Saint Francis De Sales Church near Hebbagodi, Anekal Taluk of Bengaluru rural district in the wee hours of Thursday.
The killer brew claimed 16 lives in Hebbagodi, Attibele and Sarjapur in Anekal taluk bordering Tamil Nadu, where several people had consumed the illicit liquor on Monday, police said.
The city police commissioner has promulgated prohibitory orders under Section 144 of Code of Criminal Procedure in the limits of Bengaluru city till the midnight of April 22.