Swaraj's brother is Dr Gulshan, a private practitioner in Ambala Cantt, and at the time of the protest, he was inside the house.
The NSUI workers led by state president Intzaar Husain and former district president Himanshu raised slogans against the foreign minister and demanded her resignation.
They were protesting against Swaraj for allegedly helping scam-tainted former IPL chief Lalit Modi obtain travel documents from Britain.
Husain said the Union Minister should tender her resignation on moral grounds.
