According to the chargesheet, Nisham had killed Chandrabose out of some long-standing enmity. Chandrabose used to question the habit of certain residents including Nisham of reaching the villa complex at unearthly hours in nights and had asked other security guards to block the vehicles of such late-comers, the chargesheet said.

Infuriated by this, Nisham had several times threatened to kill Chandrabose, according to the statements given by 15 witnesses including the murdered security guard's wife, Jamanthi. However, Chandrabose had continued to question the late arrival of residents and this could have led to the murder, the chargesheet said.

Nisham has been slapped with eight charges including murder. The chargesheet, submitted in the First Class Judicial Magistrate Court in Kunnamkulam, Thrissur on Saturday morning by a police team headed by Circle Inspector PC Bijukumar, contained 32 scientific evidences, 43 exhibits, 124 documents and 111 witness statements.

Nisham's wife Amal has been named as the eleventh witness in the case. She had recorded her statement before a Magistrate under Section 164 of the CrPC. Amal was present on the crime scene when Nisham was attacking Chandrabose.

Nisham had attacked Chandrabose, security guard of the posh Sobha City villa complex at Puzhakkal, Thrissur on the early morning ofJanuary 29 after he pulled up at the gates of the complex in his Hummer SUV. The businessman started the attack by beating Chandrabose up at the gates of the villa complex.

When the guard tried to run away from the scene, Nisham rammed his Hummer into him despite the efforts of the other security guards to block him. later, he took the guard to a parking lot inside the complex where he beat him up with a wooden rod. Chandrabose died at a private hospital on February 16 due to multiple organ failure induced by the attack.

Apart from Amal, statements of 11 other witnesses including the doctor who treated Chandrabose and the other security guards who were present on the scene during the incident had been recorded as per CrPC Section 164. Chandrabose's wife Jamanthi has been named as the 12th witness.

The chargesheet contained three parts describing how Nisham, owner of the Thirunalveli-based Kings Beedi Company and several other businesses including real estate, had attacked Chandrabose. The first part was a point-by-point description of Nisham's over-speed drive from Thrissur city to the Sobha City gates.

The second part contained a description of how Nisham had beaten up the guard at the villa complex gates and had rammed his Hummer into him. The third part described how he had pushed him into the boot of the Hummer and attacked him with a wooden rod.