It should be in accordance to the country the slaughtering is raking place and it must be after your Eid not before it.

Please let me know if I can send the qurbani money to somebody in my home country (kashmir) to make sacrificial sheep on day of 10th Zul Hijja on my behalf. Also if we can cut nails and hair on 10th. Zul Hija as per KSA calender or there as per the indian calender Jazaka Allah Khair