India, July 21 -- A surprise video call and a well-timed screenshot led the Delhi Police to nab two teenage robbers, solving at least seven cases of robbery and vehicle theft.

The hunt for the two accused began after the police received a complaint of two men robbing a Delhi resident of his mobile phone and Rs.20,000 at knife-point.

The two 19-year-olds accused of the robbery, identified as Harsh and Ashish alias "Suchha", have been arrested over the weekend.

Police said that the two were nabbed after the complainant's sister video-called the stolen number, which was answered by one of the accused.

"With their arrest, we have solved at least seven cases of robbery and vehicle theft," Deputy Commissioner of Police (Outer) Sachin Sharma...