The protesters apparently are believed to be either BJP supporters or Anna Hazare supporters, said reports.
Both Team Anna and BJP have long been demanding that black money stashed abroad should be brought back to the country.
Rahul Gandhi in his usual style attacked Chief Minister of Uttar Pradesh, Mayawati alleging her of misusing NREGA funds and neglecting the problems faced by the state.
The Uttar Pradesh elections are scheduled to take place from Feb 8 to Feb 28.
Meanwhile, with the election fever gripping across the state, Congress is leaving no stone unturned in their campaigning. Earlier, Rahul's sister Priyanka Gandhi had campaigned for him in Rae Bareli and Amethi.