Recover security questions answer when don't have communication with alternative email holders

sultan mahmud

New Email
My id is which i created in june 24,2010. Now I have problem with login my yahoo id . Its askin my security questions answer that i forgot & don't have any contact with my alternative email ( holder who is from different country but we were studying together in India . I have about 2000 emails in my inbox including few offer letters from different universities which is very important to me . So kindly reply & help me to get access in my yahoo account.