The BJP on Saturday accused the Congress-led UPA government of entering into a "secret deal" with the "tainted" MPs to support the government.
"Some MPs are being brought right from the jail to attend the special session. This is a part of the secret deal the UPA has entered into with the tainted MPs," party spokesperson Prakash Javadekar told reporters in New Delhi.
The UPA should come clear about this "secret deal" and tell the nation what "help" has it promised to these tainted MPs to vote for them during the trust vote, he added.
"Everyone today knows about the deal within the deal which the government entered into with the Samajwadi Party. Party leader Amar Singh has talked on record about his demands ranging from sensitive issues like spectrum allocation to corporate relations," he said.
"It is for the first time in parliamentary democracy that an ally has openly demanded appointments and removal of (those in) important posts like the CBI Director and the Petroleum Secretary. We have also witnessed how an airport's name could change for the sake of support to the government," he added.
BJP also sought to suggest the allies of UPA "to avoid supporting the Manmohan Singh government in the trust vote as the onus of the anti-people policies would also fall on them."