Recently, L&T Chairman S.N. Subrahmanyan had said a few days ago that 

employees should work 90 hours a week, before this Narayan Murthy has also advocated working 70 hours, but now 

Anand Mahindra has replied to these people that 

"This debate about work should not be about 40 hours or 70 hours, rather if you can do something for the world even by working 10 hours a day, then that is enough."