A and B are partners of a partnership firm sharing profits in the ratio of 3 : 2 respectively. C was admitted for a 1/5th share of profit. Machinery is overvalued by 10% (book value of ₹ 1,32,000), and building is undervalued by 10% (book value of ₹ 5,40,000). Unrecorded debtors of ₹ 10,000 would be brought into the books. What will be the gain/loss on revaluation?