BJP leader Khushbu Sundar on Friday questioned the silence of Tamil Nadu Chief Minister MK Stalin on a remark by a functionary of his party, the DMK, against her, demanding that he be sacked. "I would like to see my Chief Minister (MK Stalin) stand up for me. Why is he silent?" Ms Sundar told NDTV, amid a snowballing controversy over a comment by DMK functionary Saidai Sidiq.