Reliance World SIM is a single SIM for entire world – works in 175 countries. Its also a permanent number. Hence you can print this number on your visiting card or publish on your website.
You get a permanent UK number +44 and with unique “call forwarding Feature” you can call forward from your UK number to any India mobile number. This features connects you to entire world on international number, irresepctive of you are travelling or not travelling.