Yes, it is different from Atal Tinkering Lab. The Indian government granted ATL lab focus on tinkering, core electronics-robotics, IoT, machine tools, etc. While AI lab for schools focuses on Artificial Intelligence, Machine Learning and skill based subjects included in NEP.
We strongly suggest ATL schools to buy AI classroom bundle using the annual INR 2 Lacs (as per the ATL budget consumption guidelines or consumables and training) budget to upgrade the lab as per the NEP 2020.