Purola has the last ATM point before you reach Sankri (Basecamp) if you need to withdraw money.
Purola is the last place before you reach Sankri (Basecamp) where you’re likely to get a stable mobile signal and at Naitwar, you're likely to get Jio Network only. This is about 2 hours before Sankri, the base camp. Finish all your important phone calls here and inform anxious family members about limited phone connectivity.