there are many options in front of me to select like

1)-unreal engine
2)-game with js
3)-c++
 in these three which should i do first and if there is anyting new anyone wanted to suggest then please feel free to do it 

You should say more about yourself. Who are you?

Are you a game developer?
Are you a programmer?
Are you a web developer?
Are you an artist?
Are you a student?
Are you a bus driver?

You will have different options depending on who you are. What is best for an experienced programmer is not the best for hobbyist programmer, or a student, or a writer, and so on.

sorry about that 
i am a student and i am new in game development and i have interest in this field so wanted to know

I agree with 1024 that more info might be useful (for example what platforms you want to target). But, I'll go ahead and say that of the options you listed, I think option 2 (JS) may have the lowest barrier to entry. That's subjective of course, and others may disagree. But, I do think in-browser development using JS can be a reasonable starting point, and you can always branch out to other libraries/platforms/languages as you progress.