Ironically, the chart you've pointed out doesn't indicate the raw numbers, just proportions. 30% of immigrants being from India sounds perfectly reasonable. What's the problem?
It is worth adding here that in the years after Covid began, the raw number of immigrants reached record highs, in some years more than doubling the previous (steady) intake rate.
https://www150.statcan.gc.ca/n1/pub/71-607-x/71-607-x2025008...