Delhi Congress chief Ajay Maken congratulated party workers for increase in the vote share of Surender Kumar from "7.8 per cent in 2015 to 25 per cent".
Maken also congratulated AAP convener Arvind Kejriwal for the victory of party's candidate Ram Chander in the bypoll.
"Congrats @ArvindKejriwal for #Bawana! Thanks to @INCIndia workers for working hard-enabling congress to jump from 7.8% in 2015 to 25% votes," Maken tweeted.
AAP's Ram Chander emerged victorious in the bypoll, defeating his nearest rival Ved Prakash of the BJP by a margin of over 24,000 voes. Congress's Surender Kumar stood third in the contest getting 31,919 votes.
While AAP's Ram Chander garnered 59,886 votes35, BJP candidate Ved Prakash got 35,834 votes.