India's Supreme Court says people convicted of so-called honour killings should face the death penalty.

"It is time to stamp out these barbaric, feudal practices which are a slur on our nation," the court said.

According to one recent study, hundreds of people are killed each year in India for falling in love or marrying against their families' wishes.

Convictions for "honour" killings usually carry life sentences. The death penalty is awarded only very rarely.

When executions are authorised they can be delayed for years on appeal.