Brief Story : For those who are not interested in the whole story here's the plot for u .. Book a ticket https://utconline.uk.gov.in/ from Haridwar to Auli (₹ 470) in advance cause there's only bus in the morning at 05:00. Get off at Rudrapryag, from there catch a 14:30 bus towards Sari Village (₹60) . Then a 2km trek to deorital where you're required to pay a small fees to Nanda Devi Biosphere Reserve Forest Department (₹100 approx ). Next morning 24km trek to Chopta and about 3km to reach Tungnath. Next morning 2.5km to Chandrashila Peak early morning before sunrise is the best time to start. And if u still require a local help here's contact of a guide ... Ashish Negi : +919759216336.