Under Employees Compensation Act, 1923, which of the following are considered as dependent of deceased workman for the purpose of paying compensation? (i) a minor brother or an unmarried sister or a widowed sister (ii) a widowed daughter-in-law (iii) a minor child of a pre-deceased son (iv) a minor child of a pre-deceased daughter where no parent of the child is alive (v) a paternal grandparent if no parent of the workman is alive;

Industrial relations is about the relationship between the administration and the employees of an organization at the workplace. 
Minimum Wages Act, 1948, Factories Act, 1948, Maternity Benefits Act, 1961, Payment of Bonus Act, 1965 are some important labor laws in India.