THIRUVANANTHAPURAM: Kerala Chief Minister Pinarayi Vijayan will hold discussions with his Karnataka counterpart Basavaraj Bommai in Bengaluru on Sunday mainly on extending the SilverLine project to Mangaluru. The development of the Nilambur-Nanjangud railway stretch and Thalassery-Mysuru highway across the two states would also be taken up at the meeting slated to begin at 9.30am.