@Harsh3012 -- is it a brand-new computer, that comes with a warranty? If so, exercise the warranty, to get it fixed or replaced.
Do you live near a radio-station's broadcast tower? The transmissions from that broadcast could be flooding your speakers. Try taking your laptop a few kilometers away, to a different location, to see if the problem vanishes.
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".