"The BJP is a very big political party. I won't say that I will not join the BJP if I get the chance, but who is giving me the chance? I haven't sent them any request letter either," Singh told reporters here.
To a question, Singh, who was expelled from the Samajwadi Party, said he would certainly criticise Prime Minister Narendra Modi if he found any flaw in the latter.
"The Congress abstained from the special session of Parliament convened for the launch of Goods and Services Tax only because Modi was going to make the announcement of the new tax regime," he said.
Singh also took a potshot at rebel JD (U) leader Sharad Yadav's 'Save Composite Culture' campaign, asking whether Yadav didn't notice any communal atmosphere in the country when he was the convener of the NDA during the Atal Bihari Vajpayee-led regime.
Communalism and secularism have become a joke in today's politics, he said.
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