Kolkata, Dec 21 (IANS): Asserting the Trinamool Congress was competing with itself in using unparliamentary language, the BJP Sunday said the probes in the Saradha scam and the Oct 2 Burdwan blast seem to have shaken up West Bengal's ruling party.

A day after Trinamool Rajya Sabha chief whip Derek O'Brien dubbed union Finance Minister Arun Jaitley as "Frustrated Minister" and "Falsehood Minister", BJP national secretary S.N. Singh said the quizmaster had beaten his party colleagues in the "intemperate language competition".

"Derek O' Brien certainly beats his colleagues in the intemperate language competition. In the recent past, he has shown that he can use insulting language for the prime minister and the finance minister. On both the counts words are not enough to condemn his speech," Singh told IANS.

"One thing is clear, the way the Saradha chit fund scam and the Burdwan blast investigations are proceeding, the Trinamool's entire leadership is shaken and their anger is getting expressed in their linguistic skills," said Singh, the party observer for the state.

Referring to O'Brien's recent jibe that Prime Minister Narendra Modi should be "granted a visa to come to the Rajya Sabha", Singh raked up the issue of Bangladeshi infiltrators whom the Bharatiya Janata Party has been claiming of being involved terrorist activities in the state.

"What made the chief minister of West Bengal (Mamata Banerjee) to give an unofficial visa to the Bangladeshi jihadis and spread their terror activities in Bengal? Why does her government and party support invisible visas to Bangladeshi infiltrators," he asked.

"In his quest to be the king of 'intemperate vocabulary', Derek O' Brien is forgetting that obstruction is not a substitute of Trinamool's conspiracy in Saradha scam," said Singh a day after Jaitley had slammed the Trinamool for obstructing the Rajya Sabha prompting O'Brien's angry retort.