Works contract govt work 8 digitSAC code

Sreeram Kanchanam (43 Points)

17 April 2021  
we are doing works contracts govt works only.
we gave to raise invoice,in April 2021,as all are aware we have to raise E invoice with 6 digit SAC code.
Because for govt works Tax rate is 12%.
can you suggest the SAC code for the same.

regards,
Sreeramulu Kanchanam