The ONLY way to get your phone officially unlocked is to return to Spain, establish service with Orange, then request through Orange, that your phone be officially unlocked. Apple doesn't unlock iPhones & no one else can officially unlock your phone.
Apple can't help you. ONLY the carrier it is locked to can authorize unlocking it. You'll have to contact Orange in Spain and find out what their policy is.
According to this: http://support.apple.com/kb/ht1937 they do offer unlocking. Most carriers REQUIRE that you be a CURRENT customer with a minimum time of service before they will unlock the phone. Some will not unlock them for anyone but the original purchaser.
ALL iPhones sold through official channels in India are unlocked. Why do you persist in trying to find the cheap way out only to then learn that you have flushed your hard earned money down the toilet?