Is mutual funds are taxable?

I took mutual fund (tax saving fund) almost 9-10 years back. Now, I sold them with profits of 212% which gave me gain of 3Lacs. Investment amount is 1.43Lacs. After selling them, I received amount close to 3Lacs with payout dividend of 1.46 Lacs.

Is it profit and dividend amount taxable? If yes, how much? In case if it is taxable, can I adjust it with capital loss occured in this year?