Hello kaushal,I'll be happy to answer your travel queries from my experiences 😊
*The best season to visit auli is througout the year . tourist attraction in auli is snow skiing and is best during November to March .so you can consider planning your trip to auli in December.and yes there will be sufficient snowfall to enjoy skiing ,cup of coffee and undoubtedly photography. *As per your schedule,4 days will be fine and sufficient to explore auli fully .there are many things to do in auli other than snow skiing like gorson trek,camping under stars,cabel car ride ,bird watching, strolling around chittrakund lake , nearby Narsimha temple ,hiking and trishul peak view point . *I would suggest you to travel to joshimath by car /bus /tempo or whatever vehicle you are using ,and then using the India's longest cable car from joshimath to auli with jaw dropping views and amazing experience. *Eventhough buses are available ,car/cab is more preffered over tempo or buses due to steep roads you get in these areas and it nearly takes 9 hours to reach auli from Chandigarh. . whatever resort /hotel you book , you must experience one night camping easily available there and never forget to have a cup of coffee , evening sunsets and a surrounding full of mountains and silence . I just checked online and found that there are some great deals available for auli at tripoto itself, do check this link https://www.tripoto.com/auli/tour-packages HAPPY TRAVELLING
Hi Kaushal, 4 days should be good as it takes only 8-9 hours to reach Auli from Chandigarh. You can read more about Auli in the trips attached below. Keep exploring!
It can be managed easily in 4 days but you will have less time to enjoy there. Plan atleast 5 days. Travel from Chandigarh overnite and reach to rishikesh by early morning , From there , it is around 10 Hours journey to Auli. Follow the highway till Joshimath via karanprayag , rudraprayag. road are pretty good and an amazing views on the go