Though the hospital authorities declined to comment, the same old stomach problem that Bachchan, 66, has been suffering from for long may have recurred.
In his blog in the morning, Bachchan has admitted to getting a tummy ache just before he embarked for Mumbai from London a day earlier.
On arrival, he drove straight to his doctor late Tuesday night and underwent an examination and a CT scan. These revealed nothing but since the trouble persisted, more tests were advised for Wednesday, he says in his blog.
Until all the test results are out and a line of treatment finalised, he has cancelled all his shooting and travel plans, he writes.
Bachchan has vented his frustration saying despite 'extreme care', the problem keeps recurring and medication and rest have been the order of the day.