thiruvananthapuram marking the observation of national technology day at the centre for development of advanced computing cdac here on wednesday vikram sarabhai space centre vssc director k sivan highlighted the importance of indigenization of technologies to lower the cost and make it beneficial for the common man he also highlighted the importance of collaboration of research institutions within the country in bringing out such technologies he said that technologies developed by isro such as lithiumion battery for electric vehicle aerogel for thermal insulation and navigation satellite based technology can be used for various societal applications he urged organizations such as cdac to support isro in making it possible in his presidential address cdac executive director b ramani mentioned the role that cdac can play in the indigenization of technologiesas a part of the national technology day celebrations various events were organized by cdac which included technical talks visit to kerala state science and technology museum and presentation competition for staff members