Step 1: Understanding the Concept:
The amount "due on allotment" refers to the total legal claim the company has on all issued shares at the allotment stage.
This is a fixed calculation based on the number of shares issued and the per-share allotment rate, regardless of whether shareholders pay early (Calls-in-Advance) or late (Calls-in-Arrears).
Key Formula or Approach:
\[ \text{Amount Due} = \text{Total Issued Shares} \times \text{Rate per Share for Allotment} \]
Step 2: Detailed Explanation:
1. Identify Shares Issued: 2,00,000 shares.
2. Identify Allotment Rate: Rs. 3 per share.
3. Calculation:
\[ \text{Amount Due on Allotment} = 2,00,000 \times 3 = 6,00,000 \).
The problem mentions that a shareholder holding 20,000 shares paid their call money early. This "Calls-in-Advance" will increase the actual cash received in the bank, but it does not change the amount that was originally "Due" on the allotment installment.
Step 3: Final Answer:
The amount due on allotment is Rs. 6,00,000.