What happens with services?
Lets say I get 10 BTC today for some work worth approx 150K INR.
What happens if I do not wish to convert it at all?
You still have to pay tax on the income of 150K INR. Taxes will have to be paid in INR.
Where are the taxes sorted, if all my vendors all accept BTC itself? If I get salt to steel with it, where does conversion come in?
These are barter transactions and gains (ie market value of BTC on the day you purchase salt, less the market value of BTC on the day you purchased them - either by paying fiat or providing services) would be taxed as capital gains.
However, If I were to pay taxes, they would have to be in Bitcoin correct?
Taxes will have to be paid in INR, whether you receive payment in the form of bitcoins, gold coins, sodexho coupons or thirupathi laddoos.
What happens if the value of BTC that is being held after taxes rises?
So, if my 150K INR - 45k INR tax becomes 1050K INR, what happens there?
If the value of BTC rises and you hold it, there are no tax implications. When you sell it or purchase goods with it, you will have to pay capital gains tax.
Here is an interesting article on bitcoin taxation.
http://www.livemint.com/Money/3qcKrBcAMIisahVOyOygYK/Are-bitcoins-currency-or-asset.htmlThe article talks about indirect taxes as well, making my head spin.