Chief Minister, his cabinet colleagues, HPCC president Sukhvinder Singh Sukkhu, MLAs and several other leaders were present on the occasion.
Soon after the nomination process, Virbhadra addressed a rally and accused the BJP of playing "divisive" politics in the name of caste, religion and region.
Congress government in Himachal Pradesh was trying to put the economy and administration back on track and has launched a crusade against corruption, he said.
All cases of corruption and the charges mentioned the charge-sheet prepared by Congress during the BJP rule in the state, would be probed and taken to logical ends, the Chief Minister said.
BJP candidate Jai Ram Thakur is expected to file his nomination papers on June 1.
