bill for work contract

one of my client has get an amount of RS 25 LK for a work contract Govt department. how I produce bill on it
if may I treated it as including GST or exclude GST

1. 25,00,000 + SGST 150,000 + CGST 150,000 TOTAL 28,00,000
OR
2. 22,32,143 + SGST 133,928.50 + CGST 133,928.50 TOTAL 25,00,000

I GET only 25,00,000 agenest the contract including TDS

how I make bill on it pls help me...