Under what circumstances can a law passed by a State Legislature fall under the scope of Article 14 or Article 19 as per this context?
A law passed by a State Legislature can fall under the scope of Article 14 or Article 19 as per this context when it involves:

(c) The amalgamation of two or more corporations either in the public interest or in order to secure the proper management of any of the corporations, or

(d) The extinguishment or modification of any rights of managing agents, secretaries and treasurers, managing directors, directors or managers of corporations, or of any voting rights of shareholders thereof, or

(e) The extinguishment or modification of any rights accruing by virtue of any agreement, lease or licence for the purpose of searching for, or winning, any mineral or mineral oil, or the premature termination or cancellation of any such agreement, lease or licence.