Investing/Trading on US Market Shares.

#1
Hi,

Iam a Resident of the India -Bangalore.Please help me to answer my Queries.

1.Can I invest Indian money for US Options Trading or in US Stocks ?
2.Once the Indian money is funded to the Brokerage account,will it be
appeared as US dollars ?
3.IF I pay Tax on US Stocks and Options thru Brokerage Account at US,
Do again I have to Pay Tax in India ?
4.When is the Declaration of Income Tax is done at India for April
2012-March 2013 year ???
5.How do Tax regulations apply at India for US stocks and US Option Trading ?