Eighty-seven days after the body of a woman medic was found at state-run RG Kar Medical College and Hospital, a Kolkata court on Monday framed charges against the prime accused, Sanjay Roy.
A team of polygraph specialists flown to Kolkata from the Central Forensic Science Laboratory in Delhi is conducting the tests, they said.
The Central Bureau of Investigation (CBI) will conduct a psychological assessment of Sanjay Roy, the accused in a rape-and-murder case of a doctor in Kolkata that has triggered nationwide protests, officials said on Saturday.
The investigators are unable to join several dots due to lack of evidence from the crime scene.
The state police have called the scheduled rallies, support for which has been mainly garnered over social media platforms, as "illegal" and "unauthorised", and said they have taken necessary precautions to allay apprehensions about potential law and order situations during the march.
At a time when tension was already high among the North Eastern people in different parts of the country and rumours were triggering their exodus, a statement by the All India Assam Students Union leader in Guwahati about the death of an Assamese passenger in Andhra Pradesh has further heightened the tension.
Condemning the alleged incidents of harassment of Kashmiris, the home minister said they are like any other Indian and an advisory is being sent by the home ministry to all states to ensure the safety and security of people from the Valley.
Union Minister Shashi Tharoor, whose wife Sunanda Pushkar was found dead on Friday night, was admitted to the All India Institute of Medical Sciences after he suffered a "cardiac condition" in the wee hours on Saturday.