Two militants were killed and a policeman was injured during encounters in Jammu and Kashmir's Anantnag and Bandipora districts on Monday.
Militants also hurled a grenade towards a CRPF bunker in Anantnag district but there was no damage due to the explosion.
Abbas Sheikh, one of the longest surviving militants and chief of the TRF, and his deputy Saqib Manzoor were killed in a brief shootout with police personnel at Aloochi Bagh in the city.
Security forces launched a cordon and search operation in the upper reaches of forest area of Nagbaeran Tral in the south Kashmir district following inputs about the presence of militants there.
The militants were killed in two separate gunbattles with security forces in Kulgam and Pulwama districts.
The gunbattle between the militants and security forces started in Chimmer village during a cordon and search operation launched by the law enforcement agencies in the area.
The ultras barged into the house of SPO Fayaz Ahmad at Hariparigam in Awantipora area at around 11 pm on Sunday and opened fire on the family.
Saikia, kidnapped on April 21, was released by the United Liberation Front of Asom (Independent) militants near the Myanmar border in Longwa village of Mon district in Nagaland.
The police had earlier tweeted about the Ansar Ghazwatul Hind chief trapped inside the mosque.
Security forces launched a cordon and search operation in Zanigam village that turned into an encounter after militants opened fire towards security forces' positions.