NEW DELHI: Oil isn’t the only headache for India as the rupee slides.Add external debt to the list. With the currency losing more than 11 per cent to the dollar this year, the country will have to shell out an extra Rs 68,500 crore when repaying short-term debt in the coming months, according to numbers arrived at by the State Bank of India ( SBI ).The rupee fell past 72 per dollar to a record low on Thursday, amid a deepening emerging market contagion and the risk of a wider current-account deficit. If the rupee averages 73 to a dollar this year and crude oil, India’s biggest import, averages $76 a barrel for the remaining half of 2018, that could see the country’s oil bill rise by Rs 45,700 crore, Soumya Kanti Ghosh, chief economic adviser at the SBI, wrote in a note Thursday.India’s short-term debt obligations, which included non-resident deposits as well as overseas commercial borrowings by companies, totaled $217.6 billion in 2017. Assuming 50 per cent has either been paid in the first half of 2018 or was rolled over to next year, the remaining amount to be repaid in rupees would be Rs 7.1 lakh crore computed using the average exchange rate of 65.1 per dollar in 2017.“For the second half of the year, assuming that rupee depreciates to an average value of 71.4 per dollar, the debt repayment amount would be Rs 7.8 lakh crore,” he wrote. That would implying an extra cost of nearly Rs 70,000 crore.