not attending to IT Hearing

hey friends, I write letter to pr ccit for permission of filling my return under sec 119(2)(b), after two months I received letter from my ito
in that letter they said hearing is there u come with evidence and documents
but on that time I'm in another city, no time to attend hearing for 6 months, is there any problem when I not attend to hearing? is there chance to submit documents online

thank you.