I'll have to write a whole lot of big list:
1. Lack of transparency for salary.
2. Managers are biased.
3. Managers give your incentives to people whom they like.
4. Once, you are out of company, you & your problems are dead to them.
5. They'll play all sort of senseless pranks to make their work.
6. No sense of etiquette. They' ll treat you as their servant.
7. They'll pass taunts & comments on you, if you are not going by their book.
8. They think, as if world is on their feet. They are not aware, that they are on the feet of world.
9. For recruiters, no growth. They'll make you work like animals, & that too when they do not have any business.
10. Think, employees are foolish & will listen to whatever non-sense they are telling.
11. They expect you to work from 9:00 AM to 9:00 PM (& I am talking LITERALLY)
12. NO organisational culture is there.