Nick,
If YOU should get annoyed with the pompous speakers (you tolerate more than your share of Indian ways), it really must sound awful. As Bilahari pointed out, it is the 'put on' accent which irritates. vezhi vezhi annoying and amusing, at the same time.
I have to admit that those of us who have been away from India for a long time have a mixed accent--it is funny how we lean towards the English we hear around us and gravitate towards it wherever we happen to be. The same with you I suppose when you hear your voice amid the British, soon after you arrive in England
