I tried to withdraw 1 bitcoin. The withdraw is pending. More than 24 hours
Today and tomorrow are holidays and the withdrawals will only be processed from Mon-Fri 9-5 NZST timing so your withdrawal will be processed on Monday now.
If i want to transfer my ETN to another another exchange, i can't do that because the ETN withdrawal is disabled. If there any other option for me to withdrawal my ETN directly to an ETN address ? Or do i have to less in loss and then withdraw the BTC ?

You can try withdrawing it to btc. But, if you wanted for your coin to be intact(if you hold a certain amount you can get that amount when you transfer minus fee) you need to wait for them to open the withdrawal for ETN. Withdrawing btc on exchanges have high fees.