MUMBAI, India >> An appeals court has confirmed the death sentence given to the only surviving gunman from the deadly 2008 Mumbai attacks.

The High Court on Monday rejected an appeal by Ajmal Kasab, a 22-year-old Pakistani who was challenging his conviction in May. The trial court had previously found him guilty of charges including murder, waging war against India, conspiracy and terrorism.

The Mumbai attacks in November 2008 claimed the lives of 166 people.

Justices Ranjana Desai and R.B. More said Monday that: “The crime is of enormous proportion.”

Kasab can still challenge the verdict in India’s highest court, the Supreme Court, and later apply to the Indian government for clemency.