9. No house in any cantonment or part of a cantonment in which this Act is operative shall, unless it was so occupied at the date of the issue of the notification declaring this Act or the Cantonments (House-Accommodation) Act, 1902, as the case may be, to be operative, be occupied for the purposes of a hospital, school, school hostel, bank, hotel, or shop, or by ¹[the railway;] administration, a company or firm engaged in trade or business or a club, without the previous sanction of the Officer Commanding the District given with the concurrence of the Commissioner ²[* * *].