Section 7-137b is repealed; provided, that in any case where any municipality, on or before July 6, 1967, had established an industrial park under said section 7-137b, or had otherwise taken substantial action under said section, then such municipality, the state and any other interested person shall continue to be subject to said section and be eligible for state financial assistance thereunder but only insofar as said section relates to those industrial parks that have been planned or commenced thereunder and such municipality, the state or such other interested person may make application to the Commissioner of Economic and Community Development for, and the Commissioner of Economic and Community Development may make grants for the purposes of such industrial park from the funds available for the purposes of chapter 133, but subject to the provisions of section 8-154f.