"As far as Pakistan's involvement is concerned it is more than evident now. From time to time India has also been providing evidence and proof of that.
"There has been involvement and there has been perpetration of terrorism on the India's soil from Islamabad," he told reporters here.
He said the available inputs also hints at the Pakistan's involvement.
"As far as the foreign hand is concerned, it has been the experience in last 20-25 years of terrorism in Jammu and Kashmir that from time to time there has been evidence forthcoming of Pakistan's involvement.
"Therefore, there is a reason to believe, on the inputs which are available today, Pakistan's involvement in the recent episode," said Singh, Minister of State in Prime Minister's Office.
The Minister said any disruptions in Amarnath yatra would not augur well for the society.
"Amarnath yatra is symbolic of composite unity in the Kashmir society. This is an yatra in which people people from all sections of society, with all religious beliefs tend to cooperate in the term of making arrangements and providing facility to the yatra.
"Any disruption in yatra like Amarnath yatra would not augur well for society," said Singh, a Lok Sabha member from Jammu and Kashmir's Udhampur constituency.
Over 1.18 lakh pilgrims have so far paid obeisance at the cave shrine in the Kashmir Himalayas.
Yatra has been affected due to the violent protests in parts of Kashmir over the killing of terrorist Wani on Friday.
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