Do I need to book a return ticket?

dear no one can you one way ticket on visit visa. you can get one way ticket only on if u have employee visa
take both side ticket when visa process done you can return your ticket from here as well

No one will ask you the purpose of your visit. Besides, it is legal to convert visit visa to employment visa and from January 2016 onwards, all the visas can be converted without exiting. More over, the duration of stay for Visa on Arrival is revised as 90 days. But, you are not permitted to work under visit visa. You can apply for jobs, and once you get it, you need to convert it. Return ticket is not mandatory.

Thank you

hey
I didnt hear about converting the visa without exiting starting jan 2016, i hope it is true. but if now you can book a one way ticket, and when u have to exit u can book a ticket to Oman (half hour flight). The reason is that you have to enter the country via airport with ur work visa and not the tourism one.