State governments have a more significant role to play under NITI Aayog.

Yes, I do agree with the statement. 

• Under the planning commission, there was a one-way flow of policy i.e. from, Central Government to State Government. 
• In NITI Aayog, the flow of policy is from Central Government to State Government and State Government to Central Government between ministers. 
• n the policy-making of the Central Government, State Government will work closely with the center. 
• Governing Council of NITI Aayog consists of all Chief Ministers of the States. 
• Thus, State Government has a more significant role to play under NITI Aayog.