Under Section 79(2), if no order is communicated on an application for permission to construct a factory within how many days, the permission is deemed granted?

Section 79(2) provides that if, on an application for site/construction permission accompanied by the required plans and specifications sent electronically to the State Government or Chief Inspector-cum-Facilitator, no order is communicated to the applicant within a period not exceeding thirty days, the permission applied for is deemed to have been granted. If permission is refused, the applicant may appeal within thirty days under Section 79(3) --- to the Central Government if the refusal was by the State Government, and to the State Government otherwise.