They claimed it to be above 21kmpl in India!!!
https://www.pakwheels.com/forums/automobile-news/144735-corolla-altis-diesel-launches-india
I think Pakistani & Indian diesel is same in quality, although Pakistani diesel is overpriced
So if it's true, then why 1.4 d4d is sucessful in India?
Well talking about the diesel varient, it'd remain available in 2.0D version I suppose. They are making very few 2.0D cars.
Last week I spotted a 2.0D Saloon (with sunroof) near Blue area. It was in silver color with ICT-SU number plate 
Also one on Isb-expy, in cherry red metallic, Punjab-LE-11 number plate.
2.0D is low in sale, but not completely stopped!
Speed lovers get 1.8 petrol, while Power lover still prefer 2.0D