New Delhi, May 4 :    New Delhi, May 4:  The Rashtriya Janata Dal (RJD) rebels who set May 20-22 as the deadline to topple the Rabri Devi government today met Prime Minister Atal Bihari Vajpayee to discuss Bihar's political situation. The rebel MPs met Janata Dal (United) president and civil aviation minister Sharad Yadav last night. However, NDA leaders said they were not party to the toppling game. This is the second meeting of the rebels with Yadav since they formed the RJD (Democratic) last week. Three Lok Sabha MPs - Nagmani, Anwarul Haq and Sukdev Paswan - had a half-hour meeting with Vajpayee at his 7 Race Course Road residence. After the meeting, Nagmani said they told the Prime Minister they needed protection as they were receiving threat calls from persons close to RJD chief Laloo Prasad Yadav. Nagmani, however, denied that they discussed politics. He said the primary objective of the meeting was to request Vajpayee to accord special status to Bihar on the lines of Uttaranchal. After the bifurcation of the state and creation of Jharkhand, the economic situation in Bihar has become worse, they said. Addressing a joint press conference yesterday, the rebel leaders - including Rajya Sabha members Bhante Viriyo and Kumkum Rai - said they could return to the party if anybody from outside Laloo Yadav's family was made chief minister. Denying the charge of RJD spokesman Shivanand Tiwari that the three rebel Lok Sabha MPs had been paid Rs 2 crore each by the BJP, they said: 'The day it is proved, we will retire from politics.' Tiwari had alleged in Patna that the BJP had earmarked Rs 100 crore to topple the Bihar government. An MP could be bought over for Rs 2 crore while Rs 50 lakh was being offered to MLAs, he had said. The RJD(D) leaders said people of Bihar were familiar with Tiwari. One of them, Paswan, said he was consulting lawyers to file a defamation suit against Tiwari, a Laloo foe-turned-friend.