Complex sentence: According to the NFF charter, state-level farmers' organisations represent the interests of the agricultural sector in their respective states while issues related to individual commodities or interstate/national farming concerns are represented by relevant national commodity councils.
Split into simpler sentences: According to the NFF charter, state-level farmers' organisations represent the interests of the agricultural sector in their respective states. Issues related to individual commodities or interstate/national farming concerns are represented by relevant national commodity councils.