‘TheLiverDoc' questioned Temple's scientific claims, particularly its ability to measure brain blood flow and ‘entropy.'. Zomato founder Deepinder Goyal has come under fire for his latest product, the Temple fitness tracker, which is priced at ₹85,000. The criticism was led by Dr. Zomato founder Deepinder Goyal defends Temple, his brain-monitoring wearable, against criticism from doctors over its scientific claims and brain blood flow.