How has India's Test record changed every 100 matches?

India won 10 of their first 100 Tests, followed by 25, 21, 32 and 42 wins in the next four 100-Test phases. In Tests 501-599, India recorded 56 wins, 31 losses and 12 draws. Their win-loss ratio rose from 0.250 in the first 100 Tests to 1.806 in the latest 99. India are featuring in their 600th Test currently.