Two 17-year-old boys are arrested in connection with the rape of a two-and-a-half year old girl in west Delhi, Indian police said.

Paras Batra, the sales head at Leaf, creates a pendant having a small triangular chip embedded in the back which, if pressed twice, connects to an app that then sends out an alert to designated mobile phones of "guardians" who can then track the wearer's location and movement on Google Maps.

A 32-year-old woman was beaten up and sexually assaulted by a cabbie inside a black-and-yellow taxi in Dwarka, Delhi on Thursday night.

Indian Home Minister Rajnath Singh has promised an inquiry into how a TV crew gained permission to interview one of the Delhi gang rapists on death row.