The oldest and longest format of cricket, i.e., Test cricket, has been played since 1877; the 50-over One Day International (ODI) format has been in existence since 1971. The smallest and youngest format, i.e., Twenty Twenty International (T20I) started only in 2005. But mass acceptance of the shortest version of cricket was epitomized by the success of the franchise-based Indian Premier League (IPL) that started in 2008. Buoyed by the success of IPL, many other countries followed suit. Even a 10-over format (T10 league) got ICC's approval in 2018. The shorter the game, the less is the time commitment from spectators and even more is the competition. These, in turn, help penetrate new countries and ensure more thrill. These lead to more eyeballs in terms of TV, digital media and ground spectators, which ensure more money being poured in. The lure of big money made cricketers, including the budding ones, embrace T20 format. Even established cricketers are retiring from Tests to stretch their T20 career. The present work uses a meta-metrics framework for conducting formative assessment of the influence of 20-over cricket match on Test cricket. Various advanced statistical analyses were conducted on the secondary data available at www.cricinfo.com between April 1, 2000 and March 31, 2016. The study revealed a number of startling facts quite contrary to common perception, e.g., Test matches have become more decisive; they yield higher run rate; and the matches are getting over faster post IPL. Tests are showing positive trends with respect to 'batting contribution of tailenders' and 'percentage score in boundaries' which are encouraging from a viewer's point. There is a negative trend for 'runs scored per wicket', and cricketers may need to place more 'value' on their prized wickets. [ABSTRACT FROM AUTHOR]