OVER the last few weeks, senior Congress leader and Working Committee (CWC) member K. Karunakaran's attitude towards Prime Minister H.D. Deve Gowda has registered a sea change. And on March 27, he asked Congress President Sitaram Kesri to withdraw support to the United Front (UF) Government, even if that entailed going back to the polls. The demand came just days after the Kerala Vigilance Department filed an FIR in the palm oil import case dating back to 1991-92, when Karunakaran was chief minister.