Scrap value = 10% of INR 4,00,000 = INR 40,000.
Sinking fund formula:
\[
S = \frac{C \times i}{(1 + i)^n - 1}
\]
Where:
\[
C = 4,00,000, i = 0.05, n = 30
\]
Substitute values:
\[
S = \frac{4{,}00{,}000 \times 0.05}{(1 + 0.05)^{30} - 1}
= \frac{20{,}000}{4.3219 - 1} = \frac{20{,}000}{3.3219} = 6{,}020.7
\]
Thus,
\[
\boxed{5405.00}
\]