Don't have any pros. If you are fresher or don't have any job at present they you can join this company something is better than nothing.ask for appointment letter before joining and ask them to change the point which you doesn't agree with.
Kontras
Will eat up ur salary
Will not pick up ur calls or respond
You will not come to know who the HR is becoz they will play around with you by passing the buck.
Zero benefits
You will not confirmation of your employment
You can be fired anytime
Will delay your salary as much as possible.