I have had a bad experience with E-ticket, especially in Nepal while coming back. It was with Air Sahara. I went to Durbar Marg office couple of days before my departure to confirm and they said I just need to show my confirm page to counter in TIA and at airport they said they don accept those. Just a big hassel to deal while saying good bye to your loved ones. Just check before hand and at least try to get printed ticket while boarding from Nepal. Things are still old school back home. Have a safe trip back home. Have fun from my side as well.