My friend is working in a antivibrational company as production engineer. First his timming increased from 8 hrs to 10hrs. Now manager saying to do 12hrs job or leave the job in night shift from 7pm to 7 am. He is working from last 8 months there...and now due o 12 hr night shift he is acing many health ptoblems. So plzz suggest any legal action against this. He cant leave job as his family condtn is not so good.