West Bengal Chief Minister Mamata Banerjee will join Chandrababu Naidu and other opposition leaders in the capital for yet another show of strength, to be held at Jantar Mantar. Mamata will be addressing AAP's 'tanashahi hatao, desh bachao' rally, set to be missed by Rahul Gandhi with the Lok Sabha elections just months away, the opposition is yet to make a formal announcement on their leadership as they continue to put up show of strengths.