I love pasta and it is clumping after some time of cooking please give suggestions for the same.

Add a bit of oil, that should help it from clumping. But once it's already clumped, the oil won't help. The oil needs to be added before the pasta, preferably when the water is already at a boil.

Stir it occasionally and it doesn't clump... Also the lower quality brands tend to clump easier than the higher quality ones.

I always add a little bit of oil to it. Not too much because if you serve it with sauce, it will not stick to the pasta any more.

I'm also adding a little bit of olive oil into my pasta. It works for me! :)