Pterocarpus marsupium (Sandalwood), Dalbergia sissoo (Sheesham wood), and Tectona Grandis (Teakwood). The garden also has a lotus pond featuring five different coloured water lilies. Transport Metro Noida is connected by rail by the Noida Metro and Delhi Metro. The Noida Metro is a rapid transit system connecting the twin cities of Noida and Greater Noida in Gautam Buddh Nagar district, Uttar Pradesh, India. The metro network consists of one line (called Aqua Line), with a total length of 29.7 kilometres (18.5 mi) serving 21 stations. A second line is planned. The Delhi Metro officially ran in Noida on 12 November 2009. It now connects Connaught Place and Dwarka sub-city, via the Blue Line.The same Blue Line connects Noida with Vaishali through the Yamuna Bank interchange station. Delhi Metro's Magenta Line connects Noida and Janakpuri via Botanical Garden and Janakpuri West metro stations. Noida is not directly connected via high-speed rail, but there are railway stations nearby reachable by road, including Ghaziabad railway station and Anand Vihar Terminal. However, the New Delhi Railway Station and Old Delhi Railway station, which are both accessible via metro, are the main railway stations most often used by commuters to reach Noida. Road Noida has roads laid mostly in a grid pattern, and all main roads are 6 lanes wide. Noida features three main expressways. One is the DND Flyway, which connects Noida and Delhi, and runs across the river Yamuna. The second is the Noida–Greater Noida Expressway, which connects Noida to Greater Noida. The third is the Yamuna Expressway which connects Greater Noida to Agra via Mathura. The Eastern Peripheral Expressway, Delhi–Meerut Expressway, Upper Ganges Canal Expressway and the Ganga Expressway are the four expressways that are currently under construction which will be passing through the city. The area adjacent to the NGN Expressway has seen heavy residential development in recent years. A 4/6-lane double-decker elevated road is over the MP-II which takes only 5 minutes to cross the whole city. This road starts from Flex crossing and ends at Vishwa Bharti school. Another elevated road from sector 12/22 to sector 12/10-21/21A crossing is going to be built on the MP-I road. Three more elevated roads are planned. Along with these five elevated roads, several underpasses are under construction or approval and all these projects could be completed by 2020. Noida will become the city with the highest number of elevated roads and underpasses