Complex sentence: Mannarakkulanji-Chalakkayam state highway (SH-67) is the main highway passing through Nilakkal and also the Adoor-Vandiperiyar highway passes through Plappally, west to Nilakkal.
Split into simpler sentences: Mannarakkulanji-Chalakkayam state highway (SH-67) passes through Nilakkal. Also the Adoor-Vandiperiyar highway passes through Plappally, west to Nilakkal.