India's main opposition Bharatiya Janata Party says it would stage street protests against what it calls the immoral victory of the ruling coalition in a confidence vote.

The BJP says it has also expelled eight of its parliamentarians who voted for the government, or abstained during the key vote.

Tuesday's vote of confidence was tainted by a bribery scandal after opposition lawmakers interrupted a debate to wave wads of cash to protest against what they said were bribes offered by the government to abstain.

From Thursday, hundreds of BJP workers will organise rallies and demonstrate in the streets to protest what they call was a "cash-for-vote scandal".

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