Last year in November, the two Akali factions were involved in a violent clash that left 11 injured.
The DSGMC is a cash-rich body and its president is considered a powerful Sikh leader, who can attract voters in assembly and Parliament elections.
With about 10 lakh Sikh voters in Delhi, the outcome is likely to have an impact on 10-15 seats in the 2013 assembly elections.
"This will impact Congress in the assembly elections," SAD (Badal) Delhi president Manjeet Singh GK said.
Another leader said the Sarnas had protected Congress leaders allegedly involved in the 1984 anti-Sikh riots.
"We will now strive to seek conviction of those leaders," he said.
However, Mukesh Sharma, parliamentary secretary to CM Sheila Dikshit, said, "The Congress has nothing to do with the results."