What is the reason that the trading of bse and nse are shown much on tv and not the trading of other stock exchanges?

The BSE and NSE are two prominent stock exchanges, having trade workstation all over India. The above said stock exchanges have ultra speed online trading platform and has more than 1200 companies in NSE and 6000 + companies in BSE. Most of the securities listed on these stock exchanges are traded regularly and they have a concept called market maker. The role of market maker is to create and offer liqudity of the shares for which he agrees to act as market maker. The trading platform, of course of international standard which other exchanges fail to implement.