Ruling JD(U) MLA Shyam Bahadur Singh,who was shown dancing with bar girls and making gestures at a programme at his official residence here on TV apologised for his actions. ''I am extremely sorry for what I did and also for organising a dance programme last night for the people of my constituency who had come to Patna to participate in the Mahadalit rally of JD(U) today,'' he said when contacted. Singh,who represents Jiradei - the birth place of the country's first president Rajendra Prasad,was shown on local TV channels dancing with bar girls and making gestures yesterday. Taking exception to Singh's action,RJD state national general secretary Ram Kripal Yadav has demanded immediate sacking of Singh from the party for the incident. ''Chief Minister Nitish Kumar must have seen what is happening in his regime of good governance with social justice,'' he said and added that the matter would be raised by RJD MLAs during the assembly session commencing on Monday.