The calculation for interest on drawings is as follows:
\[
\text{Interest on Drawings} = \text{Total Drawings} \times \text{Rate of Interest} \times \text{Average Period}.
\]
1. Total Drawings are calculated as ₹ 10,000 multiplied by 4, resulting in ₹ 40,000.
2. The Average Period is \(\frac{15}{12}\) years, based on withdrawals occurring at the start of each quarter.
3. The Interest on Drawings is computed:
\[
\text{Interest} = ₹ 40,000 \times \frac{6}{100} \times \frac{15}{12} = ₹ 1,500.
\]