Stage 1: Application Receipt.
Shares Applied = 70,000.
Shares Allotted = 50,000.
Resulting Surplus Applications = 20,000 shares.
Stage 2: Application Funds Per Share.
Application Amount = Rs. 5 (inclusive of premium).
Stage 3: Surplus Funds Received.
Surplus Applications = \( 20,000 \times 5 = Rs. 1,00,000 \).
Stage 4: Surplus Fund Allocation.
As per the provided information, Rs. 40,000 was returned, and Rs. 60,000 was applied to the allotment. Total accounted surplus application funds = Rs. 1,00,000.
Conclusion: \[\boxed{Rs. 1,00,000}\]