Q1: It is permissible to sacrifice the animal on the first day of Eid ul Azha before the prayer of Eid ul Azha and then pray.
A: It is permissible to do so but it is better to sacrifice the animal after the Eid prayer if it was offered.
Q2: I want to Know the Islamic background of EID E NOROZ. Is it Islamic festival?
A: Norouz is a national festival for Persians and other nations like Turks and Kurds. The said nations are still celebrating it as a festival connected to their cultures even after they embraced Islam.