The government on Tuesday said single- window portal PARIVESH, launched for giving green nod to projects, has been significantly instrumental in reducing the time required for approvals and stressed that its scope will be expanded to provide information to the applicants. PARIVESH is a web-based, role-based workflow app developed for online submission and monitoring of proposals submitted by the proponents for seeking environment, forest, wildlife and coastal regulation zone (CRZ) clearances from central, state and district-level authorities.