hi sonal, i dont in anyway mean to be rude but this has been asked so so many times. if you put a search on QL you will see that there is a load of queries on this & an equal number of responses. try IAID in mansoora. tel no. - 4320974/6710589. dont take it personally but if u choose the search option you will get inputs from so many more people than the responses you are going to get for your question.