Complex sentence: Due to the mythological rigidities, the modification of the pujas and festivals were not possible, but after long and hard pursuations the Dree was selected for modified celebration at a centralised location without affecting its traditional identity.
Split into simpler sentences: Due to the mythological rigidities, the modification of the pujas and festivals was not possible. Finally the Dree selected for modified celebration at a centralised location without affecting its traditional identity.