Jammu Tawi, May 23 -- Reaffirming India's zero tolerance policy towards terrorism, Union Home Minister Amit Shah on Friday said that if the need arises armed forces will act even inside Pakistan's own territory.

Addressing the Rustamji Memorial Lecture organised in honour of Border Security Force (BSF) founding director K F Rustamji, Shah referred to cross-border terrorism and infiltration and said, "India has responded firmly whenever challenged. We replied to Pakistan all three times and, if required, we will act even inside their territory."

He said India will soon implement a complete "smart border" system along its frontiers with Pakistan and Bangladesh to strengthen surveillance and curb infiltration, drone activity and smuggling th...