(a) On 11.08.2007, P.W.1 Rajendran went to Seerkazhi Police Station and lodged a complaint stating that his sister, namely, Viji was married to the 1st accused A.Raju and the marriage took place on 27.06.2007 and her husband and the in-laws have been harassing her to get a bike for the 1st accused. Under these circumstances, on 11.08.2007, he received a phone call from her father-in-law that she was not well and therefore, taken for treatment to Rajarajan Hospital and when he went there, his sister was not there and therefore, when he went to the sister's house, he found that his sister was lying dead on the cot with ligature marks around her neck and when he started crying, her in-laws who were present at the house fled away and therefore, he gave a complaint. P.W.13 Mr.Rajendran, Sub-Inspector of Police, who was on duty, registered a case in Cr.No.647/2007 under Section 174 of Cr.P.C. and then, after the receipt of the Revenue Divisional Officer Enquiry Report on 05.02.2008, an Alteration Report was made by P.W.14 Mr.Murugavel, the then Inspector of Police, by altering it as one under Section 306 of IPC. On 01.05.2008, he arrested the accused 1 and 2 and submitted the file for further investigation to the Deputy Superintendent of Police, Seerkazhi Sub-division. Thereafter, P.W.17 Mr.Malaisamy, the Deputy Superintendent of Police took up the case for investigation, altering the case by Alteration Report dated 03.04.2008 received by the court on 26.04.2008 as to one under Sections 498-A, 304(B) of IPC and Section 4 of the Dowry Prohibition Act and thereafter, proceeded to complete the investigation and laid a final report on 28.10.2008 proposing all the four accused in this case guilty of the offences under Sections 498-A, 304(B) of IPC and Section 4 of the Dowry Prohibition Act.