Maharashtra,Karnataka, Kerala and Goa contributed 22%,15%, 6% and 6% respectively towards construction of Konkan Railway. With just 6% investment, more than 60% trains running in KR are from Kerala, with proper seat quotas in every train. Any way, any train from TN towards KR will be through Kerala.
How can Kerala with just 6% contribution dictate terms? If Maharashtra and Karnataka take such a stand, with their 22% & 15%, Kerala may not see any trains. You want everything, but not willing to share anything. Mindset should change.