India lost the second match only due to rain. India was unable to maintain a proper run rate in the 29-over game, especially as wickets fell regularly. They did not get a chance to maintain a run rate. When the game was reduced to 24 overs under the DLS system due to India's run rate not being maintained, England's target was only 121 runs, which the England women's team easily achieved.
However, if there is no rain in the second match, then it is 100% certain that the Indian women's team will win and the series will definitely go in favor of the Indian women's team.
I personally think that it is not that the Indian women's team could not have scored more in 29 overs, here I think the Indian women's team's plan was according to the ODI format and here they may not have scored more runs because they played with that strategy.
On the other hand, the England women's team got enough time and were largely confirmed and had the opportunity to play within a certain number of overs, which allowed them to win the match more easily.