Rate of GST =18%
∴Input Tax=18% of 35000=18100×35000
=₹6300
⇒ Input Tax Credit = ₹6300
Now,
Output Tax=18% of 40000=18100×40000
=₹7200
∴ GST payable = Output Tax - Input Tax Credit =7200 - 6300 = ₹900
Thus, GST payable by Surya Electronics is ₹900.