I have use idea operator in prepaid and postpaid both of them I share my experience with you
1-idea mobile show good network in indian village and outdoor place idea network is good
2 voice quality is best
3 idea to idea best calling offers
4-good data offers with good speed
5-loan option available upto 20 rupeeys
6-free converted with your 2g sim into 4g with out document
7- 24 hours costumer care and there u will setified with him 100%
Thank u