Police suspect Siya Goyal and Chetan Chaudhary hid their marriage from their families after secretly marrying nearly four months before Ketan Agarwal's killing.
Police suspect Siya was deliberately trying to create the impression that she was busy making travel arrangements for her destination wedding in Rajasthan.
The prosecution sought three-day extension of police custody, arguing that data recovered from the mobile phones of Goyal and Chaudhary contained chats in signs and coded language.
The Pune Rural police on Wednesday recreated the crime scene with co-accused Chaudhary, who allegedly played a role in the conspiracy to murder Agarwal.
According to police, Chetan allegedly played an active role in the crime but tried to conceal his identity by wearing a hoodie, cap and goggles, and changing his T-shirt from white to black.