Navjot Singh Sidhu says ‘it’s my ghar wapsi’ as he formally joins Congress, refuses to speak on Narendra Modi New Delhi, Jan 16: Former Bharatiya Janata Party MP Navjot Singh Sidhu on Monday formally joined Congress. Addressing a press conference along with Congress leader Ajay Maken and Asha Kumari, Navjot Singh Sidhu said he is a born Congressman.