I am going to review for a sim card company TSIM Communication. This company provides the low cost roaming card or the local sim of the country you are travelling. The best for using TSIM is that it is free incoming in most countries across the global.
They also have differnt types of card International, Matrix Sim, International data card and world. This sim is available and easy to use. Its main office is in Mumbai. Also this sim if you use in UK it even pays for the incoming calls you receive while in the country