"We can rule out murder in this case," a police official said, adding that they were probing the case.
Karl Slym, 51, died yesterday after he fell from the 22nd floor of the riverside Shangri-La hotel in Yannawa district.
A British national, Karl Slym was here to attend a board meeting of the Thailand arm of the company and was to have checked out of the hotel yesterday.
Tata Motor officials here did not comment on the incident.
Karl Slym was leading the company at a time when the auto industry was grappling with prolonged slowdown.
He joined the auto major in 2012 as part of a major management overhaul and was responsible for charting the company's strategy to regain momentum in the Indian market.
Before joining Tata Motors, Karl Slym was the executive vice president, SGMW Motors, China (a General Motors Joint Venture). Prior to that, he was president, managing director and board member of General Motors in India during 2007-11.
For over two decades, Karl Slym was with Toyota and General Motors in various positions across geographies.