An employee of four years at online marketplace Flipkart , 34 year old Padmini Pagadala was appointed CEO for a day as part of the Big10 celebrations to celebrate the 10th anniversary of the company.An associate director at Flipkart, Pagadala is a part of the captive logistics unit Ekart and was responsible for designing almost all of 17 fulfilment centres at the company.“It was a mutual learning experience today. Padmini who is a part of Ekart had a very different line of questions at the category review meetings we attended today,“ said CEO Kalyan Krishnamurthy in a call with ET.An industrial engineer from Georgia Institute of Technology, Pagadala comes from a strong supply chain background and said that it was important for both buy and supply-side teams to talk to each other. “I am CEO for a day and shadowing someone as humble as Kalyan has been a learning experience,“ added Pagadala.As part of its 10th year celebrations, Flipkart launched its Big10 Celebrations in March with each month dedicated to a specific initiative, starting with sports in April. The company employs close to 7,800 people on rolls apart from its delivery and fulfilment centre staff.The marketplace founded in 2007 recently raised $1.4 billion from Tencent, Microsoft and eBay and is in the process of acquiring eBay India's operations . It also counts fashion retailer Myntra and Jabong as part of its group companies.