Sachin Waze, arrested on March 13, was produced before the special NIA court here after his earlier remand expired.
The accused was reportedly upset as he wanted to go home urgently to meet his pregnant wife but his ticket PNR status was not updated and airline staff asked him to get another one.
The Maharashtra Anti-Terrorism Squad is probing the related case of Hiran's death.
According to NIA sources, a person in Personal Protective Equipment was seen near Ambani's residence Antilia.
The Scorpio, with 20 gelatin sticks inside, was found near Ambani's high-rise south Mumbai home on February 25.
Shiv Sena leader Sanjay Raut said the mysterious death of Mansukh, whose Scorpio vehicle was used to keep explosives near Mukesh Ambani's residence, was 'shocking and unfortunate'.
Leader of Opposition and BJP MLA Devendra earlier demanded to hand over this sensitive case to the central government agency National Investigative Agency (NIA).
The Scorpio was abandoned with stockpiled gelatine sticks near Antilia, the residence of India's richest man Mukesh Ambani.