Solution:

AYILLIAM THIRUNAL GOWRI LAKSHMI BAI (RANI GOWRI LAKSHMI BAI):

(bullet) Ruling Period:(1810-1815)
(bullet) Abolished slavery
(bullet) Colonel John Munro served as Dewan of Travancore from 1811 to 1814.
(bullet) The Police was reorganised in Travancore during the reign of Maharani Gowri Lakshmi Bai at the suggestion of Col. John Munro Dewan.
(bullet) By a Royal Proclamation in 1812, she abolished the purchase and sale of all slaves and granted them independence excepting those attached to the soil for agricultural purposes.
(bullet) In 1813, a vaccination department was started in Travancore.