Thiruvananthapuram: With just five days to go for the Lok Sabha elections, three pre-poll surveys in Kerala predict a sweep by the Congress-led United Democratic Front (UDF) but the ruling Left Democratic Front (LDF) is still hopeful of good results. The first prediction that came out Thursday was The Week/CVoter durvey, which said the UDF is likely to win 15 seats and the LDF five. Communist Party of India-Marxist...