Student activists Natasha Narwal and Devangana Kalita walked out of Tihar prison on Thursday, hours after a court here ordered their immediate release in the north-east Delhi riots "conspiracy" case.

The order came two days after the Delhi High Court granted bail to Narwal, Kalita and Asif Iqbal Tanha, who were arrested in May last year under the stringent Unlawful Activities (Prevention) Act (UAPA).