Reacting to the opinion poll conducted by The Indian Express, Prime Minister A.B. Vajpayee has expressed doubts, saying such polls should be considered carefully. ‘‘I have also seen the survey. The survey should be taken into consideration only after careful thinking,’’ he said. In Bangalore, however, Arun Jaitley hit out at Congress for “mounting an attack” on opinion polls and blamed it for “shooting the messenger” instead of absorbing the message contained in the surveys. — (PTI)