You should be able to resolve the matter by discussion with employer.
You may refer to SE Act applicable to your state, if required.
SE Act Delhi:
10. Interval for rest and meals.—(1) The period of work of an adult employee in an establishment each day shall be so fixed that no period of continuous work shall exceed five hours and that no employee shall be required or allowed to work for more than five hours before he had an interval for rest and meals of at least half an hour.
Karnataka has ended the blanket exemption from standing orders act and exemptions granted to IT companies from some of the provision of labor laws. In Karnataka you can refer to all enactments applicable to employees as per explanation of the employee in the enactments.