Comprehensive EIA
As the name suggests, this is conducted over a year as it involves collection of data/information for three
seasons (other than monsoons). It is usually conducted for projects that are likely to cause more or a series of adverse
impacts. However, in India, there are no clear guidelines on the type of projects for which comprehensive EIA should be
conducted. As per the new EIA notification, the authority in charge of issuing environmental clearances (either the
Union ministry for environment and forests (MoEF) or the state level body) is the decisive authority to finalize a rapid or a comprehensive EIA.