I wudn't have seeked to forums for advice if i didn't need one, so please do not post unless you have some worthwhile insight regarding the thread problem in order to resolve the issue.
No. I'm telling you you've already gotten plenty of good advice, and your responses seem to try their best not to follow them, but dismiss them. "It can't be the cheap PSU because I use them all the time" Is a downright silly response. Additionally, I'd argue that attempting to get you to stop wasting the time of both yourself and volunteers here helps everybody. Either come up with some reason besides you not Feeling suggested causes are the problem. Of course you don't think what is suggested is the problem. if you did, you wouldn't be asking for advice, would you? That said, let's go through the Original Post.
I have been facing this problem from past 2 months and more, problem is my PC hangs with Jarring Sound only while gaming.
You never tell us what a "Jarring Sound" is. By definition all we know is that the sound is unpleasant. That tells us absolutely nothing. To some people, the computer playing country music could meet this definition. Personally, I think this is probably the last second or so of sound being repeated over and over, but that's just a guess. Already we've had to resort to guesswork.
My psu went faulty last week so i replaced it and thought it wud resolve the issue but this issue is still there, after replacing with new psu this hanging reduced a bit but is still a major issue.
A Faulty PSU can often take the Motherboard or other components with it. This has already been suggested and weakly dismissed. eg.
may be ram faulty(no cuz i have used it to full capacity many times without gaming and freezing issue didn't happened then)
And then only after some insistence do you actually do a RAM or HDD test. In fact we don't even know for sure that you did. For all we know you have resorted to just saying that you tested it to get helpers to stop insisting that you do so, as if we have some magical elixir to find out what the problem is and we are just testing you with these questions and suggestions. That isn't what the questions and suggestions are for, they are for determining the cause, and the more cooperative you are in either following those suggestions or providing reasons better than "I don't think that's it" to said suggestions, the faster the cause of your issue can be found. To be charitable let's assume you did do the tests for HDD and RAM.
Now we just have to deal with the fact that this system had a faulty cheap PSU which you have now replaced with a new one. Somehow this comes up:
PSU- i recently changed one, since i used the same kind of cheap psu's built b4 and i didn't had problem b4, so i kinda doubt it.
But... didn't you just say that you had a Faulty PSU? Doesn't that count as having a problem before? Either way, I'd say either the old PSU fried something or caused some issue on the Motherboard, or the new one is not up to spec. Unfortunately there really isn't a way to test this. I'd do a chkdsk /r on the hard drive, though. You never mention how to did an HDD Test (Again, assuming you actually did). Some tools only confirm good S.M.A.R.T Status, but your issue can easily be caused by a few bad sectors.