India said on Thursday that it is regrettable that in the UN Security Council, when it comes to sanctioning some of the world's most dreaded terrorists, impunity is being facilitated and politics providing cover to evade accountability, in a veiled jibe at China which has blocked blacklisting of Pakistan-based terrorists on many occasions.

External Affairs minister S Jaishankar also urged for immediate cessation of the war in Ukraine.

"The fight against impunity is critical to the larger pursuit of securing peace and justice. The Security Council must send an unambiguous and unequivocal message on this count," Jaishankar told the 15-nation UN Security Council briefing on Ukraine Fight against impunity'.

The briefing, chaired by French Minister for Europe and Foreign Affairs Catherine Colonna, was held Thursday as world leaders gathered in the UN headquarters for the high-level 77th session of the UN General Assembly.

Addressing the Council briefing were UN Secretary General Antonio Guterres, US Secretary of State Antony Blinken, Chinese Foreign Minister Wang Yi, Russian Foreign Minister Sergey Lavrov and UK Secretary of State for Foreign, Commonwealth and Development Affairs James Cleverly and Foreign Ministers of other UNSC members.

"Politics should never ever provide cover to evade accountability. Nor indeed to facilitate impunity. Regrettably, we have seen this of late in this very Chamber, when it comes to sanctioning some of the world's most dreaded terrorists," Jaishankar said, with China listening.

"If egregious attacks committed in broad daylight are left unpunished, this Council must reflect on the signals we are sending on impunity. There must be consistency if we are to ensure credibility, he said.

Bids by India, US and other western allies to blacklist Pakistan-based terrorists under the Security Council's sanctions regime have been blocked and put on hold on various occasions by Islamabad's all-weather ally and veto wielding permanent member China in the 15-nation Council.

Talking on Ukraine, Jaishankar said as quoted by ndtv.com, "The trajectory of the Ukraine conflict is a matter of profound concern for the entire international community. The outlook appears truly disturbing."

"India is strongly reiterating the need for an immediate cessation of all hostilities and a return to dialogue and diplomacy. Clearly, as Prime Minister Narendra Modi has emphasized, this cannot be an era of war," he added.

"Even in conflict situations, there can be no justification for violation of human rights or of international law. Where any such acts occur, it is imperative that they are investigated in an objective and independent manner," he elaborated.