Rupee may still depreciate The ratings upgrade by Moody’s will bring a new class of investors in the country, so far restricted by their investment mandate of not investing in countries below a threshold.That should strengthen the rupee naturally, but it may not be desirable for the central bank. To maintain the country’s competitiveness, the Reserve Bank of India (RBI) might still want to see the rupee a little weak vis-á-vis its export competitors, revealed a Business Standard poll of 10 senior treasury heads and economists.That usually means the central bank will have to intervene in the market to keep the rupee weaker than its actual strength. Foreign exchange reserves, which recently crossed Rs 400 billion but have come off since then a bit, should get a strong boost as a result of the intervention, they said.However, in the short term, the rupee will maintain a strong bias. Ultimately the rupee’s fate is still tied to what happens to the dollar globally. The dollar index,