The terrorists have deposited 177 arms, huge ammunition and other explosive materials.
Ansari, suspected of involvement in more than 52 blast cases across India, went "missing" on Thursday.
There will be 51 visits to Jammu and eight to Srinagar.
Earlier in the day, terrorists attacked the Central Reserve Police Force party at Sarnal Anantnag in South Kashmir.
The three are Umar Fayaz Lone, Adil Bashir Mir ( both Hizbul Mujahideen) and Faizan Hameed Bhat (Jaish-e-Mohammed).
They will meet civil society leaders and will be briefed on the security situation by the Army and intelligence services.
A surge has been engineered in Jharkhand in the absence of a coherent and sustained effort
One slain terrorist has been identified as Shahid, a resident of Bijbehara area of Anantnag district.