The apex council was created by the AP Reorganisation Act. The council had not met even once despite both states asking for a meeting.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/centre-acts-krishna-water-issue-after-supreme-court%E2%80%99s-order
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-chronicle-telangana
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/telangana
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/krishna
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/andhra-pradesh
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-disputes
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/supreme-court
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-water-resources
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/godavari
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources