Congress has sought an explanation from Haryana MP Chaudhary Birender Singh.

Cracking the whip against its sulking Haryana MP Chaudhary Birender Singh who appears set to join the BJP, the Congress on Thursday night removed him from the party's working committee and sought an explanation from the senior leader asking why he was associating with the saffron party.Mr Singh, who has raised a banner of revolt against Haryana Chief Minister Bhupinder Singh Hooda, had recently met BJP President Amit Shah and there were indications that he may join the BJP.Mr Singh had earlier served as an All India Congress Committee (AICC) General Secretary and is a Rajya Sabha MP. He was made a member of Congress Working Committee (CWC), the party's top decision-making body during the last AICC reshuffle.In a letter to Mr Singh, AICC General Secretary in charge of party affairs in Haryana Shakeel Ahmed is learnt to have drawn his attention towards media reports of his meetings with BJP leaders including Mr Shah.The party is learnt to have pointed out that there are media reports that he is hobnobbing with BJP leaders without any contradiction or denial from his side. The party has also taken note of his meeting with Mr Shah two days back and his subsequent statement that he discussed political issues."All these actions are detrimental to the party's interests and have given the party a very bad name. As you are a party MP, you are requested to explain your position within three days," the party is learnt to have told him.The letter also notes that if the party does not receive a reply from him, it would be construed that he has nothing to say.Mr Singh earlier today said he would attend a rally at Kaithal on August 18, to which Mr Shah too has been invited.

Asked if he would join the BJP at the rally, Mr Singh, a known detractor of Mr Hooda, said "there I will make a formal announcement regarding my next step".Asked if this means he would join the BJP, he said, "that is your interpretation" and declined to make any further comment on this issue. He said the Kaithal rally is being organised by Hisar-based social organisation Yuva Shakti.