"If there is a Modi wave, why displace seat winning seniors like Dr Murli Manohar Joshi, Navjot Singh Sidhu and Lalji Tandon?" Singh said on Sunday.
Singh also questioned the denial of Lok Sabha election ticket to BJP veteran Jaswant Singh from Barmer.
"Why persecute Jaswant ji?" the Congress leader asked. Angry over denial of ticket to him in the Lok Sabha elections, Jaswant Singh, 76, had yesterday attacked the BJP leadership, saying there was need to differentiate between "real" and "fake" BJP as whatever was happening in the party now was not in line with its ideology.
Later, senior BJP leader Sushma Swaraj opposed the denial of ticket to Jaswant Singh saying that the Barmer decision was "not taken" by the party's Central Election Committee and she was "pained" at the step.