Neyyatinkara Gopan Swami, a temple priest, suffered contusuions before he died, according to the post-mortem report.
The 78-year-old from Thiruvananthapuram's Neyyatinkara, Kerala, died on January 9. The family had claimed that Gopan Swami entered "samadhi" and buried him in a tomb.
There were contusions on his head behind the right ear, his face, left side of the forehead and nose bridge. However, the report revealed that these injuries did not cause his death or lead to bone fracture or bleeding.
The post-mortem report said the cause of death can be confirmed only after the results of chemical test are available.
Ashes were found in his lungs and the doctors believe that this may have happened when the family tried to cremate the man.
The report also discovered that Gopan suffered from several critical illnesses, including live cirrhosis. He had a cyst in his kidneys and his coronary arteries were blocked 75 per cent.
Earlier, a preliminary exam revealed two blocks in his heart valve. He also suffered leg injuries due to diabetes.
The death of Gopan Swami had sparked suspicion with locals filing complaint. Following this, the Kerala High Court ordered the body to be exhumed for post-mortem.
The body, which was kept in an upright posture, was then exhumed on January 15.