Upset over not being given ticket for the assembly poll, AAP's Ajmeri Gate Councillor Rakesh Kumar on Monday joined the Congress party here along with his supporters.
Kumar, who was welcomed into the Congress fold by party's Delhi unit president Subhash Chopra, alleged that Chief Minister Arvind Kejriwal was an "opportunist" and deliberately kept quiet on the issue of the amended citizenship law and the National Register of Citizens.