Complex sentence: The Inter State council is a constitutional body set up on the basis of provisions in Article 263 of the Constitution of India by a Presidential Order dated 28th May, 1990 on recommendation of Sarkaria Commission.
Split into simpler sentences: The Inter State Council is an Indian constitutional body set up on the basis of provisions in Article 263 of the Constitution of India. The body was formed by a Presidential Order dated 28th May, 1990 on recommendation of Sarkaria Commission.