You have to be 10 times better than PT Usha if you have to medal at any global championship right now. This performance is not good at all, even though it might look promising. Unless any Indian woman runs 52 seconds in the 400 m hurdles, forget about medalling at the world stage.
It is always Vithya! She has a very smooth run and crosses the hurdles smoothly without checking her strides. She said she is aiming to go under 55 seconds this year and qualify for the olympics.