Step 1: Calculate total profit:
The net profit after charging salaries was \rupee 5,60,000. To find the total profit before salaries:
\[
\text{Total profit before salary} = \rupee 5,60,000 + \rupee 20,000 + \rupee 50,000 = \rupee 6,30,000.
\]
Step 2: Omkar's share in profit:
Salary credited to Omkar:
\[
\text{Salary} = \rupee 20,000.
\]
Profit-sharing ratio between Omkar and Shiva is \(1:1\).
Omkar’s share in the divisible profit:
\[
\text{Omkar's share in profit} = \rupee 6,30,000 \times \frac{1}{2} = \rupee 3,15,000.
\]
Step 3: Total amount credited to Omkar:
The total amount credited to Omkar’s capital account is the sum of his salary and share in profit:
\[
\text{Total credited} = \rupee 20,000 + \rupee 3,15,000 = \rupee 3,00,000.
\]
Conclusion:
The total amount credited to Omkar’s capital account is \( \rupee 3,00,000 \).