Thanks @thakur.ketan for joining the ride and guiding through regen technique. This was short ride just 25 odd Kms, but sheer fun. In ghats, Ather outperformed many IC engine bike or scooter. we’ll enjoy many more rides as Pune is blessed with such places within reach of Ather range.
My son was very much excited for the ride and was ready before me in morning.
Once actual school starts, I’m thinking ride on Ather can be incentive to wake him up timely. 
He enjoyed the ride much.
I realized that, regen can be aggressive while returning back. So, submitted a feature request at: https://forum.atherenergy.com/t/feature-req-regen-level-selection/13818?u=wmayuresh