Complex sentence: Andhra Pradesh Power Generation Corporation Limited is a power generating organization of Andhra Pradesh and one of the largest power generating utility in the country next to NTPC and Maharashtra.
Split into simpler sentences: Andhra Pradesh Power Generation Corporation Limited is one of the pivotal organizations of Andhra Pradesh, engaged in the business of Power generation. APGENCO is one of the largest power generating utility in the country next to NTPC and Maharashtra.