Re: IGCSE (o levels)as a pvt student
british council is in uae too. and yes you can register just for one subject too. they are bothered with the money i.e. you pay on time whether you register for one or 20 subjects its up to you (this is my assumption since the form doesnot say anything like that you must choose atleast 3 sujcets etc etc and what i said earlier (that they might ask you which relevant subjects you have etc etc) well i confused it to something else)
so yes you can do it privately
here is the bc website for uae
http://www.britishcouncil.org/me-uae.htm