Pakistan has "reliable intelligence" that India will attack again this month, its foreign minister said, drawing condemnation from New Delhi, which described the claim as irresponsible.

Shah Mahmood Qureshi's comments came after tensions over a February standoff between the arch enemies had appeared to ease.

He said on Sunday that an attack could take place between April 16 and 20, adding that Pakistan had told the five permanent members of the U.N. Security Council of its concerns.