Step 1: Capital brought by Tushar = ₹ 4,00,000
Tushar’s share = 1/4
Step 2: Use capital method to find firm’s total value:
\[
\text{Total firm value} = \frac{4,00,000}{1/4} = ₹ 16,00,000
\]
Step 3: Compare with existing capital:
\[
Moksh + Pran = ₹ 5,00,000 + ₹ 3,00,000 = ₹ 8,00,000
\]
Step 4: Hidden goodwill = Total value – Actual capital
\[
\text{Goodwill} = ₹ 16,00,000 - ₹ (8,00,000 + 4,00,000) = ₹ 4,00,000
\]
But full value is ₹ 16,00,000 — as asked in the question, not goodwill amount. Hence:
\[
\boxed{₹ 16,00,000}
\]