And two motors of mine are  stuttering....?  Any reasons for it...?  Any solutions for it.....?

@sukhpreet,
Since you average more than an hour daily on the forum, you could have found the answer yourself if you'd tried!
This problem is almost always caused by a poor connection between ESC and motor.
Check / resolder the bullet connectors first.
That'll probably solve the problem.
Best wishes.

Sir,  as i always say....... Sometimes  an experienced expert's advice/knowledge  is much more helpful..... So i thought of putting this question  sir..... although  i have searched about the topic on many forums Sir but i wasnt satisfied.....

There are some topics,  in which seeking knowledge isnt just enough..... There,  someones  experience would be a lot more supportive..... Someone we know...

And here we(the newbies ) blindly trust u,  shobhit sir,  gusty sir,  sunil sir,  anwar sir,  roman sir,  vishal rao sir and others   we see u people helping others....... So we know,  what u would say,  would be 100% right.

And this gives a little more confidence about the topic we want to know about....  Thats y i asked this....

And Thanku for taking out the time for replying Sir. 
This will be really helpful to me..

any vids.?

Yeah , waiting for video Sir

Sure, give me some time. But it is not that slow flier kind as you can see from its shape (and specs) And so needs slightly big ground to fly it properly. But I have managed ( somehow) to do it in my small backyard.