I found freecharge to be one of the best site for online recharge. Every time you rechare with freecharge it offers you many deals such as discount on dominoz, amazon, flipkart etc. Other than this deals freecharge also provides you cashback on evey recharge which you can redeem later on. It provides you the fastest way of doing recharge online. If in some case your recharge does not happen due to slow internet connection than it will refund back you within 24 hours. so you not need to worry about this. At last I reccomend you to do recharge with freecharge as it is fully safe and secure.