should we need to get an exit permit even after my cancellation of work permit .

As far as what learned from Labor Camps in Qatar , these study is so true , many times labors are forced to work over time with out giving overtime pay according to labor law , or even with out giving weekends at least in two consecutive weeks . and they are living live animals like 8-15 animals in a single room , and one toilet per 10 people .
there is a say , between Satan and sea . it seems same to the labors . they cannot deny working overtime,afraid of salary being cut , at the end of the month if it seems that their working hours are more than working hours approved by labor law , then again their overtime being deducted to make it look like normal to working hours approved by labor law.
Most employers are using the facility of Exit permit which allows employees tobe punished without giving exit permit for months , also without payment.
I really thankful to the God who made Khuboos which is helpful for these poor labors to stay alive in such situations for 1riyal/day .
gward,The intelligent being at sky . we are thank for the khuboos you sent us for 1 riyal and their Lexus