Police say timely operation prevented a possible mass-casualty attack.
Both the Congress and AAP are part of the 16-party United Opposition Forum, Assam, formed to contest the general elections together, but a rift had emerged with members of the forum announcing candidates against each other in various constituencies of the state.
While the Congress demanded immediate sacking of Chief Minister N Biren Singh, the Samajwadi Party and a few others sought imposition of President's rule in the state that has witnessed sporadic violence in since May 3.
India has not only been decked in tricolour hues in the lead up to the 76th Independence Day celebrations, but also put under a heavy security blanket, right from Delhi, the epicentre of the mega celebrations, to Jammu and Kashmir.
The legislators of the opposition parties led by Asom Gana Pasrishad stormed the well of the House shouting slogans against the government for 'engineering the murder of state Communist Party of India leader Manoj Deka' after the Speaker Tanka Bahadur Rai reserved his ruling on an adjournment motion moved by the leader of the opposition Chandra Mohan Patowary (AGP).
The arrests were made on the basis of confessions made by arrested ULFA cadre Manoj Tamuly, who was allegedly trained by an Inter Services Intelligence operative.
Indefinite curfew has been enforced in troubled Baksa district of Bodoland Territorial Autonomous District Council areas of Assam following the killing of a youth leader, Manoj Das, of Asom Sena by unidentified gunmen on Wednesday evening at Mushalpur area.
The Congress expressed its 'whole-hearted' support to the 'Bharat bandh' called by farmer unions against the new agri-marketing laws and announced that it will hold protests that day at all district and state headquarters in solidarity with the demands of the farmers. TRS president and Chief Minister K Chandrasekhar Rao said the party rank and file would actively participate in the bandh to ensure it was a success.
Sonowal, who steered the BJP to victory in the elections, has put the issue of infiltration and attempts to check them as his government's priority.