At least once in 1[twenty years] from the date on which a Development plan has come into operation, and where a Development plan is sanctioned in parts, then at least once in 2[twenty years] from the date on which the last part has come into operation, a Planning Authority may 3[and shall at any time when so directed by the State Government], revise the Development plan 4[(either wholly, or the parts separately)] after carrying out, if necessary, fresh survey and preparing an existing-land-use map of the area within its jurisdiction, and the provisions of sections 5* * * 22, 23, 24, 25, 26, 27, 28, 6* * 30 and 31 shall, so far as they can be made applicable, apply in respect of such revision of the Development plan.
1. These words were substituted for the words "ten years" by Mah. 39 of 1994, s. 10.
2. These words were substituted for the words "ten years" by Mah. 39 of 1994, s. 10.
3. These words were inserted by Mah. 6 of 1976, s. 17(1).
4. These brackets and words were substituted for the brackets and words "(including all parts if sanctioned seperatly)", by Mah. 6 of 1976, s. 17 (2).
5. The figures "21," were deleted, by Mah. 6 of 1976, s. 17(3).
6. The figures "29," were deleted by Mah. 10 of 2011, s. 12.