New Delhi: Suhail Hindustani, arrested for his alleged involvement in the 2008 cash-for-vote scam, on Tuesday sought bail from a Delhi court claiming he was merely trying to expose the "horse trading" going on before the voting on Congress-led UPA-I government's trust motion.

Special Judge Sangita Dhingra Sehgal reserved the order on Hindustani's bail plea for September 29 after hearing the arguments on it both by the prosecution and the defence.

Advocate Anand, appearing for Hindustani, submitted his client was determined to expose the "horse trading", which was going on in the run up to the confidence motion in July 2008, to save the country from corruption.

Hidustani, who was arrested on July 20, said it was co-accused and senior BJP leader L K Advani's former close aide Sudheendra Kulkarni and the three BJP MPs Ashok Argal, Faggan Singh Kulaste and Mahabir Singh Bhagora who contacted a private news channel to expose the corruption.

He said the prosecution's allegation that Hindustani was carrying a list of MPs to be bribed was totally baseless as there is no evidence on record to prove it.

"The knowledge was that I have to help these three MPs and the private media channel to expose horse-trading. It cannot be alleged that I had the knowledge of money being given for bribe," he said.

He said the charge sheet has been filed after completion of the probe in the case and there is no possibility that his client could tamper with evidence, influence witnesses or abscond, if released on bail.

Public prosecutor Rajiv Mohan, however, vehemently opposed his bail plea saying Hindustani was the initiator of the whole conspiracy and was having a list of MPs who could have been approached for their votes.

"He had a list of vulnerable MPs. Before this, there was no question of a sting operation when Hindustani first had the list of BJP MPs. The case initiation happened with him. He is a gem seller and had no involvement in politics. How can someone like him try to influence the voting in a democracy?" the prosecutor said.

The court had on Monday extended the interim bail of Rajya Sabha MP Amar Singh, an accused in the case, till September 27.

The hearing on regular bail plea of Amar Singh would be resumed on September 27. Besides, the bail plea of jailed Faggan Singh Kulaste and Mahabir Singh Bhagora too would be heard on September 29.

Singh's renal transplant shows improvement

The condition of the renal transplant of Rajya Sabha MP Amar Singh, which had deteoriated some days back following urinary tract infection, has shown some signs of improvement, an AIIMS doctor said on Tuesday.

"His condition is stable and his renal parameters have shown some signs of improvement. His urine culture report of today is better than the previous one but the urinary tract infection remains," Dr Sanjay Gupta, associate professor of the nephrology in All India Institute of Medical Sciences (AIIMS), who is looking after his case, said.

"He has told me today that he is feeling better now," Gupta said.

Admitted in the new private ward of AIIMS, Singh, 55, was shifted from Tihar jail on the night of September 12 after his creatinine level rose and was immediately put under medical observation.