Deceased Arvind and his brothers (i.e. Prakash and others) were fishermen by profession. They were owners of a boat. In the year 1999, Vishnu (i.e. original accused No.1) was serving on that boat as fisherman. He then stopped working with Arvind. On 2.6.1999 at about 9.30 p.m., Vishnu had been to the house of Prakash and requested to settle his account. Prakash asked him to come on the following day, that gave a cause for a verbal altercation. Arvind heard about the incident and proceeded towards the house of Prakash. At that time, original accused Nos. 2, 3 and 4 also came there to support Vishnu. Arvind then raised his voice and started quarrelling. Vijay i.e. the present appellant stabbed Arvind with a Darkhand (a small knife like weapon used by fisherman to catch fish) on his navel and also assaulted Prakash and others. Thereafter Arvind was taken to Tarapur. Then he was referred to Dahanu Cottage Hospital. Tarapur police recorded statement of Arvind on the basis of which Crime No.17/1999 was registered against the accused for the offences punishable under Sections 307, 404, 506 read with Section 34 of IPC. Arvind was then being shifted to Bhagwati Hospital, however, he succumbed to the injuries on the way. Hence, Section 302 of IPC was added. The investigation was set in motion. The present appellant was arrested on 4.6.1999. It is alleged by the prosecution that while in police