Nirnaya Shrestha (Nepali: निर्णय श्रेष्ठ),known professionally as Nirnaya Da' NSK is a Nepalese rapper and songwriter. NSK that stands for ‘Naughty Soul Kid’ is not only famous for his hip hop and R&B music but is also famous for his involvement in social cause, most importantly providing education to the underprivileged children. He also participated Melancholy as a rapper, an environmental song by 365 Nepalese artists is written, music composed and directed by environmentalist Nipesh DHAKA. This song has been certified in Guinness World Record entitled "Most Vocal Solos in a Song Recording".