Important to bring 26/11 perpetrators to justice: UN official

India has demanded that the perpetrators of the Mumbai carnage should be brought to justice and Pakistan should swiftly conclude the 26/11 trial of the accused.  

It feels Pakistan is not making any progress in its investigation of the attack and those responsible for it. 

In a meeting with his Pakistani counterpart on the sidelines of the UN General Assembly in September, Prime Minister Manmohan Singh had demanded effective action to bring to justice the perpetrators of 26/11 terror attack. 

Sharif had told Singh that action would be taken against the perpetrators.