Due to both sides undertaking patrolling up to their perception of the LAC, transgressions do occur.
The information was divulged by Defence Minister Manohar Parrikar in a written reply to Kumari Sushmita Dev and others in the Lok Sabha on Friday.
He said the government regularly takes up any transgression along LAC with the Chinese side through established mechanisms, including Flag meetings, Border Personnel meetings, meetings of Working Mechanism for Consultation and Coordination on India-China Border Affairs and diplomatic channels.
Regarding construction activities in Pakistan-occupied Kashmir, he said: "The government has seen such reports and has conveyed its concerns to China about their activities and asked them to cease such activities."
He informed the House that issues relating to abetting infiltration along the India-Pakistan border are taken up with Pakistan military authorities at the appropriate level through the established mechanism of Flag Meetings and weekly talks between the directorate generals of military operations of both the countries.
"The government is fully seized of the security needs of the country. Necessary steps, as required, are taken to ensure that the national security concerns are adequately addressed through capability and infrastructural development. This is a continuous process," said Parrikar.
As per assessment, details of infiltration by terrorists in J&K are: in 2015, terrorist made 118 attempts to infiltrate, of which they succeeded in 33 attempts; while in 2016 (up to March 31), terrorists made 24 infiltration bids, while succeeded in 18.
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