Civil Judge (Junior division) granted Mittal's custody to police, which will now question him about the scam.
Uttar Pradesh Special Task Force (UP STF) had unearthed online trading scam and arrested Mittal and two others on February 2.
The Enforcement Directorate's (ED) zonal office in Lucknow registered a criminal case under the Prevention of Money Laundering Act (PMLA) based on an FIR of the UP STF to probe the alleged Rs 3,700 ponzi scam case perpetrated by seeking fake social media 'likes' from lakhs of gullible investors by Mittal's Noida-based firm.