The two girls, aged 14 and 10 years, had gone to their school on Saturday, but did not return home, Nallasopara police station's senior inspector Ravindra B Badgujar said. When they did not return home till late evening, their mother and brother carried out a search, but in vain.
At around 10 PM on Saturday, their mother received a call on her mobile phone wherein one of the girls informed her that they were in a train, but did not know in which train or where they were travelling, the police official said.
Later, the girls' father, Munna Kumar Patwa, a resident of Achole in Nallasopara, lodged a police complaint in this regard. Police have registered an offence under section 363 (kidnapping) of the IPC and launched a search to trace the girls, the official said.