The Congress on Monday took a swipe at Prime Minister Narendra Modi over B S Yediyurappa's resignation as Karnataka chief minister, and said he is yet another "victim" of the PM who has a record of allegedly forcing retirements of senior BJP leaders.

Congress general secretary Randeep Surjewala charged that it is Delhi's autocracy that decides chief ministers and not the will of BJP's MLA's.

He also alleged that the BJP government in Karnataka is an "illegitimate" one as it is born out of "defection and corruption".

The Congress has been alleging that the BJP used the Pegasus spyware to oust the Congress-JDS government in the state.

"The ignominy, torment and insult being heaped upon Sh. B.S.Yediyurappa by Modi ji, dictating him to tender his resignation, makes him PM's latest victim and member of the 'forced retirement club'," Surjewala charged on Twitter.

"We now know that Delhi's autocracy decides CM's and not the will of BJP's MLAs," he further charged.

"The stark reality is that Modiji habitually insults and compulsorily throws senior BJP Leaders in dustbin of history," the Congress leader alleged.

Yediyurappa has, however, claimed that there is no pressure on him from the party leadership to resign and he has tendered his resignation of his own.

"Modiji's record is replete with painful and forcible retirements of Advaniji, M.M.Joshiji, Keshubhai Patelji, Shanta Kumarji, Yashwant Sinhaji and many others. The list of Modiji's victims in BJP doesn't end here," Surjewala said.

He also cited the names of Sumitra Mahajan, Sushma Swaraj, Uma Bharti, C.P.Thakur, A.K.Patel, Haren Pandya, Harin Pathak, Kalyan Singh as those leaders who have been retired by the top brass of the BJP.

He said the latest "victims" are Harsh Vardhan, Ravi Shankar Prasad and Sushil Modi.

Congress leader Mallikarujun Kharge, however, termed the resignation of Yediyurappa as an internal matter of the BJP.

Taking on the BJP over the Pegasus spying issue, Surjewala said, "Malady is with BJP's corrupt Government and appalling maladministration in Karnataka, for it is an illegitimate Government born out of defection and corruption."

"Will merely changing the face change the diabolical character of BJP Government synonymous with mal governance and decay," he said.

Yediyurappa announced his resignation as chief minister in the Karnataka Vidhan Souda on Monday afternoon.