Nine years and five months after the Aarushi Talwar double murder, the sensational case is back in the headlines.

This time because a division bench of the Allahabad High Court ruled that the teen's parents - Rajesh and Nupur Tawlar - did not murder her or the 45-year-old Hemraj Banjade, a household help, on the intervening night between 15 and16 May, 2008.

"We have got justice," is how Nupur Talwar, currently in jail, reacted no finding out about the high court's order, prison sources told India Today. The sources added that Nupur and Rajesh Talwar, who were serving life terms after a CBI court held them guilty of the Aarushi double murder, learnt about the Allahabad HC overturning the lower court's verdict from their jail cells.

With the Allahabad High Court's verdict today, mystery remains over who actually killed Aarushi and Hemraj at the Tawlars' Noida home in May, 2008. News of the two being found dead first broke on the morning of May 16, 2008.

The case was initially investigated by the Noida Police, which made a series of famous blunders that ultimately led to the case being handed over to the Central Bureau of Investigation. The CBI team initially came to a conclusion that Rajesh and Nupur Talwar were not involved in the Aarushi double murder.

However, in September 2009, over a year after the murders took place, the CBI's investigating officer was replaced and a new team took over the probe in the Aarushi and Hemraj murder case. This team essentially concluded that there was not enough evidence to prosecute Nupur-Rajesh or that the three other domestic helps treated as suspects were not involved in the crime.

So, the agency decided to file a closure report in the Aarushi-Hemraj double murder. Ironically, the closure report's filing was opposed by Rajesh and Nupur Talwar, who said they wanted the CBI to find out who had murdered their daughter.

The special CBI court, however, rejected the agency's closure report and ordered trail against the Talwars. On November 25, 2013, the CBI court convicted Rajesh and Nupur Talwar of murdering their child and Hemraj.

The prosecution's theory was that Rajesh and Nupur came across Aarush and Hemraj in a compromising situation and murder the two in a fit of rage.

WHAT NEXT?

Right now, the case, which attracted headlines and even served as inspiration for movies , hangs in balance. The Allahabad High Court did not explicitly say that the Talwars are innocent, but said that they must be given a benefit of the doubt, pointing to loopholes in the investigation and the prosecution's case.

The Central Bureau of Investigation has said that it will decide on a future course of action after going through the judgement. The agency has 90 days to file an appeal in the Supreme Court.

As for the Talwars, they will finally be released from the Dasna jail where they are currently incarcerated. The Talwars' lawyer said that he expects them to be released by tomorrow afternoon.