XBRL filing is mandated for select class of Companies vide "Companies (Filing of Documents and Forms in eXtensible Business Reporting Language) Rules, 2011". For details visit, Ministry website www.mca.gov.in
Saral XBRL is a software developed by Relyon, which helps in conversion of your Financial Documents to XBRL format. You can easily enter/import the details into the software, and generate the "Instance Document". Such Instance document can be easily filed in MCA website.