The premier also accused Islamabad of using terrorism as an "instrument of state policy" and said Pakistan had in the past also "encouraged and given sanctuary" to militants hostile to India.

"There is enough evidence to show that given the sophistication and military precision of the Mumbai attacks, it must have had the support of some official agencies in Pakistan," Singh told a conference in New Delhi.

Singh said the November 26-29 attacks were "clearly carried out" by the banned Pakistan-based militant group Lashkar-e-Taiba (LeT).

"Unfortunately, we cannot choose our neighbours, and some countries like Pakistan have in the past encouraged and given sanctuary to terrorists and other forces who are antagonistic to India."

An Australian woman of Indian descent has appeared in court in Adelaide charged with murdering her husband by setting fire to his genitals.

Rajini Narayan, 44, is alleged to have doused her husband, Satish, with a flammable liquid while he was sleeping. She then set him alight.
Mr Narayan leapt out of bed and accidentally knocked over the liquid, causing the fire to spread.

Mrs Narayan told the court she had not intended to kill her husband but to punish him for his alleged infidelity.

Prosecutor Lucy Boord said Mrs Narayan had confessed to her neighbours, telling them she was a "jealous wife" and believed her husband was having an affair.

"I just wanted to burn his penis so it belongs to me and no one else, I didn't mean this to happen," Ms Boord quoted Mrs Narayan as saying.

The fire, on 8 December 2008, caused damage to the couple's house estimated at 1m Australian dollars ($715,000, £490,000).