Now Indian Embassy will not do attesting here if it is not attested from India. There are some good agents here who do this, I had it done before, but they are a bit expensive. I have lost the name and number, but their office is right opposite to 'Toys r Us' near ramada signal (above that lumgargini and bugati showroom). Please don't give to any local unregisted agents who call, perhaps you will loose your certificate. Other option is to send it to India to your place and catch hold of some local travel agent. They will get it done for cheaper inshaAllah.