Low inflation means control over living costs.
One thing Congress did really bad was subsidize petrol. It made everything else more expensive. Last may, potatoes were 30 rs/kg and onions topped over 100. Potatoes are now 12/kg and onions back to normal levels. People who support Modi do so exactly because he is not and idiot like Congressies.
WSJ may not have mentioned this, but there were many, many sound economic decisions that has helped bring inflation (aka rise in cost of living) lower. Some may not realize, but this is quite impressive.