Chart above shows the Test-by-Test batting average comparison for Pataudi Trophy. And while it is often said that numbers hide more than they reveal, the above chart tells the entire series story.
1st Test - India & England both had their moments, both tails showed fight. And India ground out a draw with a fighting 3rd innings display taking out the time. England marginally ahead in the averages on account of their small first innings lead.
2nd Test - It was a low scoring match and India were ahead. With time in hand India won.
3rd Test - The one that changed it all. Big score by England, India could not avoid follow-on. England did not enforce the follow-on and then ran through the Indian 2nd innings. Hence the big gulf in the averages.
4th & 5th Tests - India bat first, score smaller and smaller. England score bigger and bigger. 2nd time around India go worse. And England are not required to bat again.
While England picked up their batting after Lords (and their bowling as well), India went lower and lower.
Overall series averages: England - 43.69; India - 25.74. A difference of nearly 18 runs/wicket certainly indicates a wide gulf in class of the two batting units.
Overall, a terrible performance by Indian batsmen.