"Today I have come here to collect the nomination form and will possibly file it tomorrow," Singh said outside his residence here today. The former chief minister of Madhya Pradesh met with Rahul Gandhi in Kerala at the party's Bharat Jodo Yatra and had arrived in the national capital late last evening.
Till now, only Shashi Tharoor has declared his candidature for the post.
The filing of nominations for the top Congress post will take place till September 30 and the election will take place on October 17.
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