As per rule 12(10) of cst (regn.and turnover) rules,1957 it is stated that the provisions applicable to C forms also apply for H forms also.In other words 2nd proviso to rule 12 (1 ) is applicable for H forms also meaning therby one H form is required for all transactions which take place in one quarter.
However as per sub section (3),(4),(5)of section 13 of cst act,1956 state governments can make their own cst regn and turnover rules.So requested to check up the respective state regulations also before taking a final decision.