Half a century ago, the princely states embodied everything backward and despotic; today, with the likes of Pillai and Sagar, we've overcorrected into hagiography. What Pillai describes was hardly unique to Travancore, and it certainly doesn't explain "Kerala's modern success".
Surprised to learn, via
@UnamPillai's 'The Ivory Throne', that Kerala's modern success in public health management bears a longer, older story behind it. It was the last Travancore Maharani who created a public health division in the early 20th century!