New Delhi: Defence Minister Rajnath Singh on Sunday warned that the possibility of terrorist attacks along India’s coastline remained high with Pakistan involved in "nefarious" actions to destabilise India.

The minister’s comment was in response to a question about terrorist threats along the country's coastline. Singh was interacting with reporters on board India’s aircraft carrier INS Vikramaditya, the Press Trust of India news agency reported.

"Any country in the world should have adequate security for itself. We cannot rule out any possibilities (of terror threats)," Singh said.

“When the question of our neighbouring country comes, you know very well that to destabilise and to break India up, it keeps taking nefarious actions," Singh said without naming Pakistan.

"I can say this with complete belief that our Indian Navy has a solid and attentive presence here for maritime security," Singh said, adding that a repeat of a Mumbai-like attack could not be allowed. "We cannot forget what happened on 26.11.2008 (the Mumbai attack). If some mistake has happened once, it must not be repeated again at any cost. Therefore, our Indian Navy and Coast Guard always remain vigilant," he said.

India has been strengthening its coastal security since the 2008 Mumbai attack in which 10 terrorists from the Pakistan based Lashkar—e-Toiba group set sail from Karachi, hijacked an Indian fishing vessel after killing its crew and then used dinghies to land in Mumbai. Security personnel in India have been on alert since a spike in tensions between India and Pakistan after New Delhi revoked a temporary provision in its constitution and amalgamated Kashmir more closely with itself on 5-6 August.

Earlier this month, news reports quoting a senior army official said the they had received intelligence inputs that terrorists can attack the southern part of India.

News reports have also quoted terrorists belonging to the Khalistan Zindabad Force (KZF), caught by the Punjab police, as saying that four drones, from across the border in Pakistan, were used to drop cache of weapons and ammunition inside India. Following this, the Army and Border Security Force (BSF) had sounded an all-out alert along the entire India-Pakistan border and Line of Control (LoC).