The Shiromani Akali Dal (Amritsar) activists shouted slogans against the Union Minister as soon as the leader stood up to address the function marking the 350th foundation day celebrations of this holy city.
The function was disrupted for a while and police rounded up about 35 persons while many others went out raising the slogans.
The protesters demanded the release of Sikh prisoners lodged in various jails of the country, citing that they had completed their sentences.
Singh, however, did not react to the slogans.
Earlier today, the Home Minister along with BJP President Amit Shah paid obeisance at Takht Kesgarh Sahib.