Payments made by Regional Centres and Study Centres of IGNOU are subject to TDS under various sections depending on the type of payment. For Regional Centres, common payments include salary, rent, maintenance contracts, transportation, advertisements, and honorariums. For Study Centres, common payments include equipment rent, maintenance contracts, transportation, advertisements, and payments to counselors and evaluators. Responsibility for deducting and depositing TDS lies with the disbursing officer of IGNOU.