New Delhi: A recent opinion poll conducted by the market research firm GFK in eight cities (Delhi, Mumbai, Hyderabad, Kolkata, Chennai, Bangalore, Ahmedabad and Lucknow) between May 8-10, 2012 revealed that nearly 66 per cent of the respondents were dissatisfied with the current Manmohan Singh-led UPA government and would want the PM replaced by Congress General Secretary Rahul Gandhi or Gujarat Chief Minister Narendra Modi.