No such provisions for periodical increases, increments, or promotions are laid down or specified in any labor laws. They depend upon the policies framed by the companies and usually differ from one another. Since companies do not want to lose employees who have gained experience in their respective fields and aim to keep them engaged, remunerative growth is extended to the workforce from time to time based on their capabilities, behaviors, exposure, discipline, and, above all, the prosperity and financial capability of the company concerned.
Therefore, it is better to approach your own HR department to seek a solution for any doubts you may have.
Regards,
P.K. Sharma