Information return obligation requires specified entities to submit prescribed transactional returns or face treatment as not furnished. Obligation to furnish information returns requires specified persons and entities to submit prescribed periodic returns containing registration records, account statements, tax payment details and transactional data in prescribed form and manner to the designated authority. If the Commissioner or an authorized officer deems a return defective, the filer is intimated and may rectify the defect within thirty days or a further allowed period; failure to rectify results in the return being treated as not furnished and the Act's non-furnishing provisions apply. The authority may also serve a notice requiring submission within ninety days where returns remain unfurnished.