The stretch of the wall from Attakulangara Junction to Azhikotta is being conserved using age-old techniques of lime plastering
source https://www.thehindu.com/news/national/kerala/restoration-work-underway-on-fort-wall-in-thiruvananthapuram-in-spite-of-several-challenges/article68391849.ece
source https://www.thehindu.com/news/national/kerala/restoration-work-underway-on-fort-wall-in-thiruvananthapuram-in-spite-of-several-challenges/article68391849.ece