The government can ensure laws are fully implemented by conducting surprise raids and checks the workplace. It can, for instance, ensure that every worker gets fair wages by regularly inspecting work sites and punish those who violate the law.

various roles of the government are as follows:
1. Provide public facilities for a decent standard of living of all citizens.
2. Make laws for the protection of people from exploitation by the market.
3. Enforce laws to ensure their proper implementation and punish those who flout the rules/disobey the laws.

Following are the advantages to foreign companies in setting up production in India:
(i) Cheap labour
(ii) Fewer additional expenses (housing facilities etc.) 
(iii) No strict safety standards to follow

The Labour Ministry sets the minimum wages.

We need a law on minimum wages to ensure that workers are duly paid and not exploited by their employers.

Privately-owned companies are always aiming for profit maximization. Foreign companies also come to India with the same motive. Availability of cheap labour is the prime attraction. Wages that the companies have to pay to workers, say in the USA, are far higher than what they pay to workers in poorer countries like India. Companies can get longer hours of work for lower pay.
Additional expenses like housing for workers are also fewer. Cost cutting can also be done by other more dangerous means because of lax safety rules in India. Due to high population and rampant unemployment, employers exploit workers because of their vulnerable positions and there is always the option to replace one employee with another.

At its West Virginia plant in the USA, the Union Carbide had put in place computerised warning and monitoring systems. Whereas the UC plant in Bhopal relied on manual guages and the human senses to detect gas leaks. The company cut its costs by seriously compromising on safety in the Bhopal plant. Every safety device was either malfunctioning or in short supply.
Between 1980 and 1984, the work crew for the MIC plant was cut in half from 12 to 6 workers. The period of safety training for workers was brought down from 6 months to 15 days and the post of night-shift worker for the MIC plant was abolished.