why does Indian Bitcoin exchanges offer huge spreads( Bid and Ask)? Why does Indian bitcoin exchnages are offering huge spread and why not international exchanges(ex:bitstamp,btc-e)
Both Bitstamp and BTC-e are international exchanges that focus on worldwide customers.  Because of that, the market is much larger and more liquid and the spreads are more narrow.  However, none of these exchanges will convert rupee (INR) or provide local deposits and withdrawals.

The local bitcoin exchanges do significantly less volume, so they have to charge a bit more. In addition, they provide services such as bid/ask in INR and integration with local Indian banks.

As more competition comes to the local exchange market, spreads will likely narrow, but still not match a Bitstamp or btc-e.