Cenvat taken on service tax input

Nitin Sewal (Audit Assistant) (69 Points)

03 June 2016  
It is manufacturing company but during the year we have provided services to our client and we have raised proper service tax invoice.My query is , whether we can use CENVAT of Service tax Input in both ER-1 return ( against excise payable) as well as Service tax Return (Agst. Service Tax Payable). And we are maintaining only one service tax register.