Each block has a height (e.g. 444600) and a hash (e.g. 000000000000000000f2085ab75fa5170fb1df5a335c79e78426063487486418). Without knowing the raffle, they probably refer to the (last digit of the) hash of the block with height X.

i never heard of it, and it isnt listed at marketcap. but i can help you with a few advices:

first, you need to learn how to use google and marketcap.
second, if google didnt helped, you need to learn how to post in the right board.

I would suggest opposite of this. More GPU's you start with it will be better. You will utilize your resources better (slots on motherboard, PSU ... ) instead of having just one or two cards. You will hit ROI faster with more GPUs.

It all depends on the algorithm the coin's use, Bitcoin for example uses SHA256. SHA256 , Scrypt and X11 are the only algo's who have known ASICs atm, so all other algo's have to be mined with your GPU or your CPU, you can still use your GPU to mine SHA256, Scrypy or X11 but it won't be nearly as profitable or not at all in most cases.

It all depends how the ASIC is designed. e.g in past I used Gridseeds to mine scrypt coins but I also could use them to mine BTC (that time I considered Scrypt mining more profitable)
so the answer is YES, you can use same HW (if such ASIC is designed for)

P.S there are also specific coins called CPU COINS purposely designed to be ASIC & GPU resistant.

Welcome to India and good luck for the deal. I would like to share some facts (not to demotivate you but still to make you aware of few things).

# 1. Bitcoin Prices are high in India as compared to preev or international market, so you have to pay some excess amount around 8% to 10% to buy bitcoins in India otherwise find someone who is willing to sell you below market price.

# 2. I have seen that buyers often ask for 10% to 20% to buy bitcoins in cash.

# 3. There is cash crisis going on in India, so there is less cash in the circulation as 86% currency notes were banned in one stroke, and yet the printing is going on for new currency notes, and it is going to take at least next 12 months to get the situation at normal state.

BONUS NEWS:

# 4. Banks were closed today, and will remain closed for next two consecutive days.

# 5. Almost all ATMs (which are opened) have at least 15 people in a queue and it takes almost 1 hour to get cash from debit / credit card.

Sorry to inform  

Anyway, I live in Pune, if you have any plans to visit this city then we can probably meet for general discussion.

What is the progress on this as its being 5 days past and no update from the OP related to it? Were you able to do the deal with anyone in UP or any other state for that matter and if yes kindly let us know from whom and how much btc you bought it ?