Permission to be taken for construction, etc., after

After the publication of a notification under section 10 or section 12, no person shall erect, or proceed with, any building or work on, or enter into or carry out a contract in respect of, land within the area included in the scheme, unless he has applied for, and obtained permission, in cases where a scheme has not been sanctioned, from the municipal council, and in other cases, from a responsible authority: Provided that, if the council or the responsible authority omits for three months from the date of receipt of such application, to communicate to the applicant any orders thereon, it shall be deemed to have granted the permission.