Justice S P Garg heard the CBI and Karti's lawyer and reserved his decision.
The CBI opposed the bail plea saying that tampering of evidence and influencing witnesses in the case was a possibility.
Karti Chidambaram has challenged the special trial judge order refusing to grant him bail.
Follow NDTV for latest election news and live coverage of assembly elections 2019 in Maharashtra and Haryana.
Subscribe to our YouTube channel, like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.