In January 2014, Philips Lighting India, in association with the Maharashtra Tourism Development Corporation, undertook the expenditure of 2 crores to illuminate the gateway, by installing an LED lighting system with sixteen million shades. Philips used products from its Philips Color Kinetics and LED street lighting, and did not receive any branding for the illumination project in which 132 light points were created, which were reportedly sixty-percent more energy efficient than the old lighting system. In August 2014, the state Directorate of Archaeology and Museums had proposed conservation of the gateway by the ASI, after noting deterioration caused by saline deposits from the sea. An estimate of costs was to be prepared and approved by the ASI. The last such conservation had been undertaken twenty years earlier. An independent study had earlier been conducted at the gateway, between June 2001 and May 2002, aimed at informing future conservation of the monument understanding the degree of colour changes of stones owing to seasonal weather conditions and saturated colour of minerals. The study found the stones of the monument to appear darker during monsoon than during other seasons while the colour change in the inner portions of the monument rises with variations of seasonal humidity and temperature, given they do not face the sea, rainwater, or sunlight. It concluded with the finding that the alteration degree and overall colour change in the inner portions are higher than those in the outer portions of the monument.