Here's one more provision from that draft Indian model BIT:
Chapter V – Exceptions
Article 16: General Exceptions
16.1 Nothing in this Treaty precludes the Host State from taking actions or measures of general applicability which it considers necessary with respect to the following, including:
(i) protecting public morals or maintaining public order;
(ii) ensuring the integrity and stability of its financial system, banks and financial institutions;
(iii) remedying serious balance-of-payments problems, exchange rate difficulties and external financial difficulties or threat thereof;
(iv) ensuring public health and safety;
(v) protecting and conserving the environment including all living and non-living natural resources;
(vi) improving working conditions;
(vii) securing compliance with the Law for the prevention of deceptive and fraudulent practices or to deal with the effects of a default on a contract;
(viii) protecting privacy of individuals in relation to the processing and dissemination of personal data and the protection of confidentiality of individual records and accounts; or
(ix) protecting national treasures or monuments of artistic, cultural, historic or archaeological value.
Note the word "considers," which, as we know, makes this provision "self-judging," and thus quite broad.