A special CBI court had last week granted her the permission to attend the rituals anywhere in Mumbai, including at her residence, between 7 AM and 7 PM on December 27.
The court had, however, rejected Indrani's plea for the interim bail to visit her hometown Guwahati. Her father Upendra Bora had died on December 15.
Indrani stepped out of the jail at around 7.30 AM amid heavy police protection to reach Brahmin Seva Samiti hall in suburban Mulund.
Indrani had sought interim bail for visiting Assam for the rituals, but CBI had opposed her request. The agency produced an e-mail sent by Indrani's son Mikhail to CBI, saying he did not want her to visit Guwahati.
CBI also said Indrani's intention was to influence prosecution witnesses and there was also a possibility that she might try to escape from custody.