There are various factors that can affect currency rate. Some of the major factors include inflation rates, interest rates, government debt, terms of trade, relative strength of other currencies, recession, change in competitiveness, and government intervention.
Currency rates change every day due to demand and supply. If the currency value of a particular economy (country) raises then the currency of the other economy decreases. And hence currency buyers and sellers find themselves on the way to equilibrium most of the time.
Yes, you can add multiple currencies & products you wish to purchase in one order. You just need to add the currency/product in the order cart and proceed.
The rates published on Thomascook.in portal are updated on real time basis as they are connected to a live market data feed.