Can an insider deviate from the approved trading plan, (As per Reg 5 of SEBI (Prohibition  of  Insider Trading) Regulations, 2015)?

As per Reg 5(4)-The trading plan once approved shall be irrevocable and the insider shall mandatorily have to implement the plan, without being entitled to either deviate from it or to execute any trade in the securities outside the scope of the trading plan. Provided that the implementation of the trading plan shall not be commenced if any unpublished price sensitive information in possession of the insider at the time of formulation of the plan has not become generally available at the time of the commencement of implementation and in such event the compliance officer shall confirm that the commencement ought to be deferred until such unpublished price sensitive information becomes generally available information so as to avoid a violation of sub-regulation (1) of regulation 4.