Bharatiya Janata Party (BJP) leader Lal Krishna Advani on Tuesday had a dig at Prime Minister Manmohan Singh for his warning about terror attacks from Pakistan, saying he had realised that the country's unhappiness with the Indo-Pak joint statement was "correct".

"Manmohan Singh had accepted the Indo-Pak joint statement and strongly defended it inside and outside Parliament," the BJP leader told reporters in Shimla when asked to comment on the Prime Minister's warning that the nation faced terror threat from Pakistan.

Referring to Singh's statement at the Chief Minister's conference on Monday and the position he had taken after the joint statement, Advani asked "How can there be similarity?"

He said he was "happy that he (Singh) has realised that the country's unhappiness with the joint statement was correct. That is why he has warned the country about threat of terror attack."

The joint statement issued after Singh's meeting with Pakistan Prime Minister Yousuf Raza Gilani in Sharm-el Sheikh in Egypt in July had spoken about delinking of dialogue from action against terrorism by Pakistan.

The joint statement had come under all-round attack but Singh strongly defended it.