Megastar Amitabh Bachchan is upset over the malfunctioning of micro-blogging site Twitter and his blog saying that either they rectify the situation or he will quit. "Distraught to read comments on malfunction on Twitter and tumblr. blog.. sent warning to concerned - rectify or I go elsewhere," he tweeted.

The 69-year-old actor also said that malfunctioning of these sights have been causing him quite some discomfort. "My apologies to those that face problems in commenting.. my blog too keeps disappearing.. cannot tolerate discomfort for Ef/TwFmXt (extended family)," he posted. "Travelling again.. with deep concern for Ef/TwFmXt.. stay put for the moment.. otherwise there are 'many other fish in the sea'," he added.