He also noted that Pakistan has been continuously violating the ceasefire agreement to which India has always given a befitting reply.
"Pakistan has waged a proxy terror war against India and it is a big challenge before us. We have taken many countries into confidence on this count...We are also taking diplomatic measures," he said here.
Citing the recent pact with UAE on cooperation on counter terrorism operation and intelligence sharing, Singh said it was a big diplomatic success.
Terming India's borders with Pakistan and China as "very sensitive", he said security arrangements had to be ensured keeping the situation in mind and as per the requirements.
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Though the boundary with Nepal and Bhutan was peaceful and there was no problem, the borders with Bangladesh and Myanmar were "active", he said.
Terming infiltration in Jammu and Kashmir as a big challenge, Singh said ever since the NDA government came to power in 2014, infiltration cases dropped to 52 in 2014 and further to 15 this year from 264 in 2012 and 277 in 2013 and congratulated the Army and Paramilitary forces for it.