About the human skeleton found in Kariavattom campus's water tank

It's been nearly a year since the incident and I haven't seen any updates on it. The authorities confirmed that the body was that of an IT professional named Avinash Anand from Thalassery, and mentioned about his long lost contact with family before death. That's all the information they've released. I haven't come across a single report discussing the circumstances of his death. Initially, there were speculations that it might have been a suicide, but some... Doesn't add up. The body was found hanging, with the rope tied to the kambi visible in the photo above. It's possible that he could have tied the rope and then jumped into the hole. However, what puzzles me is that the witness stated that the tank's cover was closed. The tank doesn't have any footholds or ledges that would have allowed him to close the cover from the inside. Several people in the comments section also pointed it out that time. Anyone saw the updates about this in news? I used AI to search every websites and articles and none of them mentions the exact cause of death. Plus, This is the 3rd time they're finding a body there. I don't have any suspicious on the second death as a suicide note was found near the body. If anyone have any updates on it, pls drop it down below. Thank you.