Srinagar, May 1 -- Days after National Investigation Agency (NIA) formally took over the April 22 terror attack probe, the agency chief Sadanand Vasant Date on Thursday arrived in Pahalgam, officials said.

NIA teams have been already camping at the terror attack site since last week and intensified the search for evidence.

After arriving in Srinagar, the NIA chief immediately proceeded to Pahalgam, where officers of the counter-terror agency are expected to brief him on the ongoing investigation.

"The NIA DG may also visit Baisaran valley, the site of the carnage," said an official.

In one of the deadliest terror attacks on civilians in J&K, 25 tourists and a local resident were shot dead on April 22 at Baisaran meadow in Pahalgam whi...