Approval under section 10(23G) grants tax benefit to infrastructure provider subject to compliance and audit obligations. Approval is granted to M/s Idea Cellular Ltd. under section 10(23G) read with rule 2E for assessment years 2002 2005 for its licensed cellular projects in Maharashtra and Gujarat. The approval is conditional on conformity with the statutory provision and rule 2E; the Central Government may withdraw approval if the undertaking ceases to provide an infrastructure facility, fails to maintain books or obtain audits as required, or fails to furnish the mandated audit report.