well thats good, i dont know about the procedure for Islamabad but probably it would be same as Punjab, so here it is for Punjab, 1st download form for duplicate license fill it and attach another form (medical) which is also available on DLIMS website, pay the fine in shape of post office tickets and paste em on form. you are half way done, now go to Punjab Traffic police station licensing branch and give them your form, they will take your photos and ask about the details like ID card no, old driving licence, name etc and done you ll get your license in 2 to 4 days. after paying them Rs.180/- for courier charges.