I invested in SBI mutual funds and earned some profit.I want to know>>?

the interest/profit earned from mutual funds is taxable or not. I invested in open ended mutual funds like Contra fund growth, SBI Magnum tax gain Growth etc. What about tax on earning through online shares trading through DEMAT account? I doubt because there is tax deduction if we invest in fixed deposit schemes e.g SBI 2yrs fixed deposit, in 1 lakh deposit nearly Rs 2000 was deducted as tax.We need to mention PAN no. in fixed dep/mutual funds/DEMAT A/cs,so there must be tax deductions?