Regarding 80G....

I hv a small doubt. While calculating the deduction u/s 80 G we take into consideration the 10% of adjusted GTI. Adjusted GTI= GTI- deductions u/c VI A (assuming no shares income ) so if my GTI was like 350000 and u/c VI A i invested... 80C-100000 80D-30000 so will the adjusted GTI be 350000-100000-30000= 220000.. and deduction in 80G upto 10% of 220000= 22000....Is It True....