On national level, SLS Pune is more reputed as it is 30 year old law school. Internationally, JGLS is more reputed despite it is just 3 year old because it was set up with Harvard & Yale Law School Professors on board and has collaborations with Cornell, Michigan, Indiana, NYU, Brown, Columbia among others.
Market value is a relative term. A student's aim should be to get highest quality education and exposure in terms of national and international internships, exchange programmes, moots, etc. Market value will follow automatically once you get that.

Best wishes. Thank-you.