Most employees would not have access to see your results. Some certainly would. Of the ones who do it is probable that they don't know you or don't care about your results. If you happen to work in the departments where people generally have access then you may have more concerns. Obviously it would be unethical for a manager to look up the results of their workers but that doesn't mean it can not be done.
Of course TCS has 275,000 employees and Wipro has 145,000 employees. Both TCS and Wipro will have access to your results along with all the other data including personal information on hundreds of millions of other people. But I am sure we can trust everybody at TCS and Wipro to keep all the data safe and secure and never share it outside of the small group of people who are actually required to develop and operate the systems they will be taking over.