Step 1: Understanding the problem.
The company purchased machinery for ₹18,00,000 and issued shares at a 20% premium. The premium is calculated on the face value of the shares. Let the face value of the shares be \( x \). The total amount received from issuing shares is:
\[
\text{Total amount} = \text{Face value} + \text{Premium}
\]
\[
\text{Total amount} = x + 0.20x = 1.20x
\]
Step 2: Calculate the face value.
We are given that the total amount received is ₹18,00,000, which equals \( 1.20x \). Therefore,
\[
1.20x = 18,00,000
\]
\[
x = \frac{18,00,000}{1.20} = 15,00,000
\]
Step 3: Conclusion.
The face value of the shares issued is ₹15,00,000.