Dependent Visa Validity

Please any can tell about the validity of dependent visa in bahrain. which means if dependent visa gets approved within how many months should i bring my wife to bahrain? like within 3 months or 6 months or no time limit?

It will say on the visa when it is issued i.e. validity for using it.  Usually its 3 months from issue date.  There is no such thing as no time limit - you have to bring the person into Bahrain and get the residence sticker stamped on their passport within a certain time frame or the visa itself gets expired.  Then you have to apply for a new one and pay again.

its valid for 6 months from date of approval. It will be mentioned in the evisa copy. So your family need to enter within 6 months after getting Bahrain visa