A software engineer working for Indian outsourcing HCL Technologies has been arrested in connection with a 2002 bus-stop bomb attack in Mumbai.

Siddique Taj-ul Islam Kazi was arrested in Hyderabad on Wednesday last week. He is accused of being the "main conspirator" of the attack, in which two people were killed and 50 injured, and of being a member of the banned Students Islamic Movement of India organisation.

Kazi worked at HCL since 2011, reportedly under an assumed name. According to DNA India, he was a senior technical lead earning a salary of Rs 70,000 (£700).

The Times of India reports that Kazi and his alleged co-conspirators had met at college and had previously started a software company together.

Kazi’s family refute the accusations against him, and believe he has been arrested for having worked with some of the other suspects.

"Some partners of the firm were earlier declared accused in the Ghatkopar blast case and were arrested too," his wife said. "We believe that since Taj is friends with them he was framed for no reason."

The Ghatkopar case has caused controversy in India. Another suspect reportedly died in  custody after the police originally claimed he escaped.