Power Minister Piyush Goyal will unveil world's largest street light replacement programme in South Delhi Municipal Corporation (SDMC) area today. Mr Goyal will also launch a mobile app called Energy Efficiency Services Limited (EESL) Complaint App for SDMC, wherein users can now lodge complaints about faulty street lights. AIR Correspondent reports that street Lighting National Programme (SLNP), currently running in the SDMC area is the World's Largest Street Light Replacement Programme where two lakh LED lights will replace inefficient lamps. <br/><br/>Additionally in Delhi, under Phase II of the street lighting programme, EESL has signed a tripartite agreement with BSES and SDMC to install 75,000 more street lights with more focus on installation in parks. The SLNP programme is presently running in more than 14 states. A total of 15.36 lakh street lights have already been replaced in the country with LED bulbs. This programme save energy of over 20 crore kWh, avoiding capacity of nearly 51 MW and reducing around 1.7 lakh tonnes of greenhouse gas emissions per annum.