<span style="color: #222222;">Tamil Nadu Chief Minister MK Stalin insisted that the Inter-State Council meetings should be held at least thrice in a year. In a letter to Prime Minister Narendra Modi yesterday, he said the Council serves as a platform for all States and the Centre to discuss subjects having common interests.<br />''<br />''He termed the Council as a key tool to strengthen co-operation and federal relations among the States and with the Centre.<br />''<br />''Referring to the Presidential Order in May 1990, Mr Stalin said it is mandatory to hold the Council meeting thrice a year, though it was conducted only once in the last six years in July 2016 in New Delhi.</span><br />