Mr Singh was found by police with multiple stab wounds in Spikes Bridge Road on July 30 and died in hospital the following day.
In tribute to the 33-year-old, friends and family gathered at the scene of the murder on Sunday (August 7) from around 5pm and prayed for the "popular" construction worker.
The victim's brother, known as "Rocky", flew from Holland to be at the march and MP Virendra Sharma, who represents Ealing Southall, also made an appearance.
Harry Chahal, who described himself as a close friend of Mr Singh, also know as Gurinder, said: "It went really well, there were a lot of people there.
"His brother flew from Holland with his wife. We were expecting that many people to turn up because he was that popular - emotions were running high.
"The community was shocked (by the death). There is a big gap in our lives, I would always see him down the park."
Mr Chahal had earlier told getwestlondon how the march was also staged to call for an end to the recent violence with has resulted in a spate of stabbings.
Just days after Mr Singh's death police found a victim with multiple stab wounds who died in Kilburn on August 1.
Amandeep Sandhu, of Townsend Road, was charged on Sunday (August 7) with the murder of Sukhjinder and appeared at Hendon Magistrates Court on Monday (August 8).
Four other men, aged 24, 28, 29 and 36 respectively, have been arrested in connection with the murder and have been bailed to return to dates in mid to late September, pending further enquiries.