As there is no partnership deed, interest is payable @6% p.a. on loan as per Indian Partnership Act.
Loan advanced = ₹ 5,00,000
Period = 6 months (October to March)
Interest = ₹ 5,00,000 × 6% × 6/12 = ₹ 15,000
Profit after charging interest = ₹ 2,15,000 – ₹ 15,000 = ₹ 2,00,000
Shikha’s share = \( \frac{5}{20} \times 2,00,000 = ₹ 50,000 \)
Final Answer: ₹ 50,000