Corrigendum to "First surface measurement of variation of Cloud Condensation Nuclei (CCN) concentration over the Pristine Himalayan Region of Garhwal, Uttarakhand, India". (1st October 2021) - Gautam, Alok Sagar; Tripathi, S.N.; Joshi, Abhishek; Mandariya, Anil Kumar; Singh, Karan; Mishra, Gaurav; Kumar, Sanjeev; Ramola, R.C.