Tamil Nadu Chief Minister M Karunanidhi today met Prime Minister Manmohan Singh in New Delhi on Moday. He is in the capital on a three day visit to discuss the the seat-sharing mechanism between the DMK and Congress in upcoming Assembly elections in Tamil Nadu. According to official sources Karunanidhi is also believed to have discussed the issue of Indian fishermen being allegedly killed by the Sri Lankan Navy. The DMK Chief is also scheduled to meet Congress Chief Sonia Gandhi to discuss the seat sharing mechanism.