The charge sheet, submitted in the Ernakulam Principal Sessions Court,named Ameerul Islam, a native of Assam who was arrested in June, as the lone accused in the case and charged him with offences, including rape and murder.
Ernakulam Rural SP PN Unnirajan, a key member in the SIT headed by ADGP B Sandhya, said the charge sheet was submitted after conducting a "scientific and technical probe".
Unnirajan said the police, which collected 125 pieces of documentary evidence and around 75 exhibits, succeeded in building "a strong case" against the accused and filing the charge sheet within the 90-day mandatory period.
There are 195 witnesses in the case, he added.
"The SIT formed by the new (state) government probed the case very well," Unnirajan told reporters at Aluva.
Ameerul, a migrant labourer from Assam, was arrested on June 16, 50 days after the gruesome murder of the 30-year-old law student which became a major issue in the run-up to the Kerala Assembly election in May.
The rape-and-murder case was in focus during the Assembly polls campaigning with the opponents attacking the then UDF regime for the "tardy" progress in the investigation and failure to nab the culprit.
The LDF government, after coming to power in the state on May 25, had changed the constitution of the investigating team and entrusted the probe with ADGP Sandhya at its first Cabinet meeting itself.
Police had said a blood-stained chappal (slipper), found from a canal near the victim's residence, was one of the key pieces of evidence in zeroing in on the accused.
Over 100 police personnel were involved in a "scientific" probe into the incident. They questioned over 1,500 people and went through over 20 lakh telephone call records before zeroing in on the accused.
Disclaimer: No Business Standard Journalist was involved in creation of this content
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