HSN code fresh

1) you may search on GSTN portal - gst.gov.in / services / user services / scarch HSN / by discreiption / Goods . ( if not accurate ) .  you may raise Ticket on GSTN for HSN , on gstn selfservice portal 

2) you also have to confirm form Customs Tariff  Act 1975 . 

3) You  may also get in Notification 2/ 2017  if  above are exempt supply . (check accuracy ) 

Take more Opion for  accurate HSN code .