India will play three ODIs against Zimbabwe in Harare between August 18 and 22.
Sanju replaced an indisposed K L Rahul.
In a rain-affected final ODI, India scored 225 for 3 in 36 overs, courtesy Gill's career-best knock of 98 and another half-century from skipper Shikhar Dhawan.
India have hosted the event thrice -- in 1978, 1997 and 2013.
Upton has been roped in on a short term contract and will be the latest addition to coach Rahul Dravid's team of support staff.
The current method costs Rs 2,400 per bone test and takes about three-four days while the proposed usage of BoneXpert Software will give instantaneous result and costs only Rs 288.
India were set for a 350-plus score but Dhawan's dismissal for the seventh time in the 90s led to a middle-order collapse with the visitors reduced to 252 for five from 213 for one.
ICC International Panel umpires Anil Chaudhary, Madangopal Jayaraman and Virender Kumar Sharma as well as Rohan Pandit, Nikhil Patwardhan, Sadashiv Iyer, Ulhas Gandhe and Navdeep Singh Sidhu have also been included in A+ category.
Byju's first came on board back in 2019 when mobile manufacturer Oppo transferred the sponsorship rights to the online tutorial firm.
Kerala had missed out on a quarterfinal spot narrowly to eventual champions Madhya Pradesh last season.