Complex sentence: In recent few years The Delhi-Alwar Road passing through Sohna, Nuh and Ferozepur Jhirka has been upgraded to a status of National Highway an express way connecting Kundli-Manesar-Palwal Express way is being built through the northern fringe of Mewat.
Split into simpler sentences: In recent few years The Delhi-Alwar Road passing through Sohna, Nuh and Ferozepur Jhirka has been upgraded to National Highway. An express way connecting Kundli-Manesar-Palwal Express way is under construction which pass through the northern fringe of Mewat.