No =D
sim card
Assuming the phones are of the same specification for the SIM card - yes.
yes only if you top up though it lasts for three months. however windows live messenger/hotmail is free all the time on 3g phones so you do not need to top up if that's what you need .
A call card expires 90 days after purchase. When one top-up the card, it resets to 90 days until expiration. There is no limit to the times one can top-up a card.
By emi no
get two strips of card fold them on top of each other and stick in a card.
Pathivu Panam (பதிவுபணம்)
all phones have the same sim card slot!
No
Card reader
You can buy a top up card at the carriers listed on the box from which to phone came. You can also go online and register your credit card. The easiest thing to do is leave your card registered and top up as needed.