Postmortem report of Kodela
The Postmortem report of Former Speaker Kodela Siva Prasad reached to the concerned investigating officer. The Osmania hospital mentioned in its report that Kodela used a wire to suicide, he initially tried with his dothi but it failed.

As per the information given by family members in the investigation, he attempted suicide in Guntur but to avoid police case they framed it as a heart attack. Police came to know that Kodela along with his wife and daughter came to Hyderabad three weeks ago.

After examining the call data police came to know Kodela spoke to an employee of Basavatarakam Hospital named Sunitha. They are likely to question her regarding this. 
Based on all these evidence police have speed up the investigation.