Hii Gunjan , I'll be happy to answer your travel queries from my experience ☺️.
*Chopta is surrounded by the mighty Himalayas, making it the best trekking destination as well. It is the base for various trekking destinations like Tungnath, Chandrashila and more. This place is also termed as the “Mini Switzerland” of India due to its scenic beauty. *Auli is a Ski resort destination and a hill station in the Chamoli district of the Garhwal Himalayas of Uttarakhand. A white winter wonderland, Auli is famous for its Ski resorts, Ski slopes and Ski events that are organised every winter.
*Chopta and Auli both places offer you snow-capped charming panoramic Himalayan views. Chopta is situated at the elevation of 2680 mts, whereas Auli is situated at the elevation of 2505 mts above the sea level in the Garhwal range of Uttarakhand.Chopta with Auli is a popular tourist circuit or vice versa (Auli and then visiting Chopta). Both places are very majestic in terms of beauty and views they offer. *I have a small suggestion for you, I just checked online and found that there are some great travel deals for auli available at tripoto itself , do check out this link
https://www.tripoto.com/auli/tour-packages HAPPY TRAVELLING
Chopta Tungnath without any second thought. I had gone to Tungnath + Chandrashila last year. Also, published a trip on the same. Check it out, it may help you. Go to chandrashila as well, if you can. Happy Travelling.