In an attempt to control the air pollution level Delhi Metro Rail Corporation (DMRC) is taking a big step The DMRC, keeping in view the worsening of air quality across Delhi and the National Capital Region (NCR), has introduced as many as 21 additional number of metro train services on its network. These additional metro train services have started with effect from October 31, 2018, providing 812 additional number of trips. It includes 14 metro trains with 730 trips on newly introduced Shiv Vihar-Trilokpuri-Sanjay Lake section of Pink Line. With these additional metro train services, for the first time in the history of DMRC, Delhi Metro will be running 4831 trips in a day, the highest ever so far.