Twisha's death has generated an extraordinary interest in India because in public perception, members of India's powerful judiciary are meant to lead by example.

Twisha's parents and siblings alleged that she was tortured by Singh and his mother over dowry demands and that she was murdered.

Giribala called the accusations "baseless" and alleged that Twisha had mental health issues and that she killed herself. Samarth initially could not be located but later surrendered to police. Giribala was arrested a few days later and the mother and son remain in jail.

"Due to continuous mental cruelty at the hands of both the accused [Twisha's husband and mother-in-law], she was left with no option but to end her life," the CBI said in the 600-page chargesheet submitted in the court last week.

Twisha's family lawyer Ankur Pandey told BBC Hindi that since the CBI has invoked sections related to abetment to suicide, "it means that the investigation has considered the death to be an alleged suicide".

He said the CBI has sought permission from the court for further investigation, saying that "if new evidence emerges during the investigation, role of some more people can be investigated and, if needed, a supplementary chargesheet can be filed".

Giribala Singh's lawyer Inosh George Carlo told the BBC, "The investigation has found no evidence of the earlier allegations of dowry harassment and murder... We have been saying this from the beginning but the media never listened to us."