India has a currency problem and it\u2019s not going away anytime soon. A current-account deficit at a five-year high, elevated oil prices and an emerging-market sell-off conspired to push the rupee to below 72 per dollar last week, taking its decline since the beginning of the year to almost 12 percent, the worst performer in Asia. Pressure is mounting on the Reserve Bank of India to take stronger action to stem the currency\u2019s slide. The central bank has already raised interest rates twice since June and depleted billions of dollars to bolster the currency, but with little success. With upcoming data likely to show another large trade deficit for August and the U.S. Federal Reserve expected to hike interest rates this month, analysts see more pain for the rupee. DBS Bank Ltd. is predicting the currency will weaken as low as 75 per dollar, while UBS Securities India Pvt. cut its year-end forecast to 73 from 66. Here are some conventional and some not-so usual measures policy makers may consider: Raising Rates The RBI raised its benchmark rate to a two-year high of 6.5 percent last month and is likely to follow through with more policy tightening in the coming months, pricing in the swap markets show. The central bank targets inflation, not the exchange rate, and attributes any interest-rate moves to its goal of containing rising prices. While data on Wednesday will probably show inflation eased to 3.8 percent in August, according to a Bloomberg survey of economists, the outlook remains uncertain given the rupee and higher oil prices. \u201cThe joker in the pack is the currency,\u201d said JPMorgan Chase and Co.\u2019s chief India economist Sajjid Chinoy, adding the rupee\u2019s rapid fall might force the RBI\u2019s hand sooner than later. The six-member monetary policy committee will make its next rate decision on Oct. 5. India isn\u2019t alone in Asia in raising rates to curb inflation and stem foreign outflows. Indonesia has increased rates four times since May while the Philippines has tightened as well. Market Intervention The RBI intervenes regularly in the foreign-exchange market to smooth volatility. Citigroup Inc. economists Samiran Chakraborty and Anurag Jha estimate the RBI sold about $2 billion in the spot market in August, well below the $4.7 billion average in the April-June period. It also sold about $10 billion in the forward market in the three-month period, according to data from the central bank. The intervention has taken a toll on foreign exchange reserves. From a record $426 billion in mid-April, reserves have fallen to $400 billion in August - enough to cover eight months of imports. Tap Non-Residents One of measures being actively considered is turning to wealthy non-resident Indians to replenish foreign-currency reserves. This option was exercised in 2013 when a discounted swap window lured inflows of about $34 billion. Authorities also tapped overseas Indians in 1998 and 2000 to ward off pressure on the rupee. Indranil Sen Gupta, India economist at Bank of America Merrill Lynch, says if capital flows don\u2019t revive, the government may once again turn to non-resident Indians to raise $30 billion to $35 billion. India can also consider raising $5 billion through a sovereign bond issue. A government official told reporters on Monday that the government was considering a plan to tap its citizens abroad. Higher Tariffs The trade war is the new weapon in town. India, with its past experience of relying on higher duties to curtail imports, could use it to curb the current-account deficit, as Indonesia recently did. In the aftermath of taper-tantrums in 2013, India hiked import duties on gold bullion and jewelry. That saw inflows shrink, helping narrow the current-account gap. This time around, electronics imports have outstripped gold. Oil Demand The RBI can open a special swap window for oil marketing companies like it did in 2013. That would take a sizable amount of dollar demand off-market and boost the rupee. \u201cA re-introduction of this policy for oil marketing companies and potentially for defense-related imports could provide some support for the rupee in the near term," Barclays Plc analysts Siddhartha Sanyal and Rahul Bajoria wrote in a note. Back in 2011, domestic exporters and importers were prevented from re-booking forwards contracts, and this could again provide support for both spot and futures, Barclays said. Fight Panic Verbal intervention is always an option. While the RBI has said it doesn\u2019t target any level for the exchange rate, government officials say they have sufficient firepower to deal with the rupee\u2019s decline. The right level for the rupee is 68-70 per dollar, with 72 being \u201cperhaps an outer limit or beyond the reasonable outer limit for depreciation,\u201d Economic Affairs Secretary Subhash Chandra Garg told the Economic Times in an interview this week. \u201cThose operators who are trying to take advantage of this contagion feeling in emerging markets may come to grief later,\u201d he said. Some officials like Rajiv Kumar, vice chairman of the government think-tank NITI Aayog, have maintained that the rupee is overvalued on a real effective exchange rate level. A 36-country trade-weighted index of the exchange rate dropped to 115.15 in July from 120.02 a year ago, central bank data shows. A level higher than 100 suggests an over-valuation of the exchange rate, while a level below that suggests undervaluation.