How to fix an exchange rate in international trade?

I am from Europe and planning to buy products from Indian. How can I fix an exchange rate for this trade? Because every day the price is varying. So how can I fix a rate? Can you please give me some advice?How to fix an exchange rate in international trade?Which Currency (US$/ Euro/ Others) do you plan to bill your imports and the invoice value over each month/quarter.You can invoice at the spot rate or average rate weekly/monthly/quarterly/

half-yearly and take forward cover(s) to hedge the FX fluctuations. For assistance in formulating a FX Risk management plan to actually take FX positions per your case, please contact with your official particulars %26lt;IAAI.Kapital@gmail.com%26gt;.