Complex sentence: Despite many attempts by Indian government to facilitate the development in the state, the reason behind the poor condition of the state has been the ignorance of Manipur's peoples towards Indian Government and demands of separate nation.
Split into simpler sentences: Despite many attempts by Indian government to facilitate the development in the state, the state had failed in gaining the advantages for many reasons. Behind the poor condition of the state has been the ignorance of Manipur's peoples towards Indian Government and demands of separate nation.