Not sure really.
The causes of poverty are complex and are usually not due to lack of resources but the distribution of those resources. Truly, there is more than enough food produced to feed everyone on this planet and more.
Now I assume that cattle produce is exported, causing increased prices in India. When cultured meat becomes more widespread and accepted I would expect the prices of cattle produce to start falling.
Now if that scenario will then result in less land getting used for cattle and it is repurposed for vegetables, grain and fruit I would expect seeing an easier access to food for the poor.
But as I say, I cannot be certain, there are just too many variables. Perhaps this will help, perhaps it won't. At least it can barely make things worse for poor and starving people in India.