Actually the first wicket partnership looked more like a surprise, because if you analyze you can see that England has batted very poorly in their second innings (in all the matches so far). Burns and Hameed gave them a head-start, but the remaining batsmen (including Joe Root) couldn't utilize it. And for India, it's just the reverse. So far they have performed better while batting second. And in India's case, the lower order have contributed massively to the total. In the second test, Jasprit Bumrah and Mohammad Shami put up 89 runs for the 9th wicket, while for the 4th test first it was the 63-run stand between Shardul and Umesh for the 9th wicket, and then again there was a 100-run stand between Rishabh and Shardul for the 7th wicket.