HSN details in GST-2

Vaishali Shah (63 Points)

25 October 2017  
I have quarry for filling of GSTR2 for HSN details
1) if I can use offline tools for preparing GSTR2-hsn details also generated automatically
2) if supplier not mention HSN details in invoice what can I do
3) can I use hsn number like other...in
gstr-2
4)HSN not mandatory who turnover less than 1.5 CR why gstr2 mandatory
kindly advise me