He was on the board of directors of Mindtree, GTV, Liqwid Krystal, Way2wealth Brokers, Coffee Day Natural Resources, and Way2wealth Securities.

With capital given by his father, Siddhartha bought stocks worth ₹30,000 and started the company Sivan Securities.

[17] On the evening of 29 July 2019, he told his driver to stop as they approached the bridge over the Nethravati River in Ullal, Mangalore.

The Indian Coast Guard and National Disaster Response Force eventually joined a search.

[18] A letter,[19] apparently written by Siddhartha and addressed to his company board, shareholders, and family, surfaced a few hours after he went missing.

[19] His body was found at the Hoige Bazaar beach on 31 July around 6:30 am by local fishermen who informed the police.

[21][17] His body was cremated at Chethanahalli coffee estate owned by his family in Chikkamagalur district on 31 July 2019.