Registrar examination of electronic filings requires notice for defects and may label unrectified filings invalid, triggering fresh filing. The Registrar shall examine or cause to be examined all electronic applications, e-Forms and documents filed on the MCA website, notify defects or requests for further information by website posting and e-mail or post, and preserve records of such intimations. Filers are given a fixed opportunity to rectify defects or re-submit; failure to do so permits the Registrar to reject or label filings 'invalid'. Informational e-Forms under the Straight Through Process may be examined anytime and defective STP filings must be re-filed with applicable fees. Invalid filings may be cured only by fresh filing with payment of fees.