Goldy surrendered before Senior Superintendent of Police, Amol V Homkar, who said a woman was also detained in connection with the case.
A licensed double barrel gun used for killing Arun Namta along with a live cartridge, a revolver and a car were seized from the possession of Goldy, he said.
The police, after initial investigation, had sent teams to Mumbai, Delhi and Punjab in search of the accused, who gave the team the slip in the Western metropolis.
Namta (35) was shot dead near Jemco under Telco police station here on June 21.
Goldy's uncle Dalbir Singh Birre, a transporter, had been murdered by miscreants over personal enmity near Jemco in December last, Homkar said.