Sources: Walmart-backed PhonePe targets an up to $10.5B valuation in its Indian IPO; PhonePe raised $600M from General Atlantic at a $14.5B valuation in October (Jaspreet Kalra/Reuters)

Jaspreet Kalra / Reuters: Sources: Walmart-backed PhonePe targets an up to $10.5B valuation in its Indian IPO; PhonePe raised $600M from General Atlantic at a $14.5B valuation in October   —  Walmart-backed Indian fintech firm PhonePe (PHOP.NS), the country's most used payments platform, is aiming to list at a valuation …