Rohtash Tayal, who dug the borewell in Haryana into which four-year-old girl Mahi fell and died, was arrested and sent to judicial custody for 14 days, an official said Sunday.
Tayal was on Sunday produced before judicial magistrate Sachin Yadav who sent him to jail for 14 days.
Mahi slipped into the 70 feet deep and narrow borewell in Kasan village near Manesar while playing with her friends June 20 night.
The distraught father, Neeraj Upadhyay, was living with her wife, daughter Mahi and a younger son in a house owned by Tayal, a resident of New Delhi's Najafgarh area.
Tayal had dug the borewell outside his gate where Mahi lived. After coming across rocky surface, he left it uncovered in the second week of June.
He was booked under sections 304 (part 2) and other sections of the Indian Penal Code, police said.
Mahi was trapped in the borewell for more than 86 hours and died June 24.
After the district and the Punjab and Haryana high court dismissed his bail applications, he surrendered.