Himachal Pradesh Assembly Speaker Kuldeep Singh Pathania on Thursday disqualified six Congress MLAs who had cross-voted in the recent Rajya Sabha polls for the lone seat in the state.

They had also abstained from voting on the Budget in the assembly, defying a party whip to vote in favour of the government on the Finance Bill, which led to their disqualification.

The disqualified MLAs are Rajinder Rana, Sudhir Sharma, Inder Dutt Lakhanpal, Devinder Kumar Bhutoo, Ravi Thakur and Chetanya Sharma.

Addressing reporters here, Pathania, who had reserved his verdict on the disqualification of the MLAs on Wednesday, said the legislators attracted the anti-defection law by defying the Congress whip as they were elected on the party's tickets.

"These six MLAs are disqualified and cease to be members of Himachal Pradesh Legislative Assembly with immediate effect," the Speaker said.

These MLAs had cross-voted in favour of BJP candidate Harsh Mahajan in the Rajya Sabha elections on Tuesday. Later, they abstained from voting on the budget in the assembly.

The House passed the Finance Bill by voice vote after Pathania suspended 15 BJP MLAs. The Speaker then adjourned the session sine die.

In a stunning upset for the ruling Congress in Himachal Pradesh, the BJP on Tuesday won the state's lone Rajya Sabha seat with its candidate Harsh Mahajan defeating Congress stalwart Abhishek Manu Singhvi and apparently setting the stage for a no-trust motion in the assembly.

Amid the crisis, several Congress MLAs met at Sukhvinder Singh Sukhu's house.

In the 68-member Himachal Pradesh Assembly, the Congress has 40 MLAs while the BJP has 25 legislators. The remaining three seats are held by independents.