yes murali if u have an engineer's visa and u wife is sponsored by u , she can get a visit visa on arrival with u in dubai ....u have to be with her she will not get a visa as a housewife without u also taking a visa with her.... the visa is valid for 14 days and u pay AED 100 for it ..... thats now ... however visa charges are changing in september ....
I am sure about this coz i travel to dubai quite regularly with my hubby who sponsors me ... so have fun !!