@ prehistoric gamer
AQB (Average Quarterly Balance) depends on the area where you reside. These days most private banks will ask you to maintain 10,000 rs. Only in rural areas are they providing 5000 AQB. you can try ING vysya though. In my city udaipur they are still letting customers maintain a 5k AQB.
As for international transactions and purchasing, get entropay. Its a virtual credit card service. They will provide you with a prepaid virtual credit card to use exusively for online shopping at international merchants and sites. You can load funds on it using your (any banks) debit card with mastercard or visa logo. Initially when you'll start you'll have to load minimum 20$ or a ove to use it. But if you like it and you'll if you want to shop online more than an average customer would, you can simply upgrade the account to basic by confirming your email address. After that your minimum funding will come down to 5$.
One more thing to remember is that entropay after awhile will ask you to either validate or verify that you are the proper owner of the debit card you are using to fund your card. You can do this either by validating through their jumio service which requires you to put your card in front of a webcam (only front side having the card number). Or you can verify via their paypal like verification system wherein they send a unique 4-digit code via a transaction on your debit card in which your debit card is charged 1$.
I had a lot of trouble getting my axis bank debit card VERIFIED in their process because somehow the 4-digit code wasn't coming in the transaction details. After a lot of hassle with both my branch and Entropay support was i able to get my card verified. I chose to VALIDATE my card too but due to my card being an "image card" i wasn't able to. The image was hiding the card numbers because of which their webcam service couldn't capture it. Note to self- don't get an image debit card unless you're a compulsive show-off.
I was easily able to get my ING card validated because the numbers were clearly visible.
P.S.- if you plan to do much online shopping get a separate account for that other than your main savings account. Use that account and its debit card for as much national/international payments and transactions you need. Because especially in case of entropay, if you check on internet, people have complained they would sometimes freeze the funding source of your entropay account i.e. the debit card or the bank account you'd use to fund your EP card. Although more often than not there has been something fishy about the situation of people having this issue. It is as entropay has put it their way of ensuring their top of the class security system. Not to say it is bound to happen to everyone, still always take some facility like entropay with a grain of salt. Using a different bank account for such things with AQB + only enough balance that you need for online purchasing/payment, always ensures that you don't loose control over your main savings account if something goes wrong with the other account. Disputing such situations take their own good amount of time but you'll atleast have access to your main savings you could need at any moment. Besides, you can always transfer funds between these two accounts at your convenience as and when you need.