I have been using idea sim cards from a long time around 3 years . It has given me full satisfaction because networks are available every where .
This mobile operator gives a good network area even in the hilly areas I didn't found any problem in the networks . The other most important thing in this sim is that in extreme cases the voice quality does not get affected .
The plans of the idea are also very good at very cheap rates it offers the 4g plans and the 28 days plan of talk time .
This is the plan for which every one was dreaming of . And now we are at the position on which we get 2 gb of data and un limited talking in just 200 rupees .
The idea operator also gives good after market service like the sim card can be blocked by making a call on the services centre and a new sim card is given with new number on the same day .
This is the best mobile operator .