Tata DOCOMO 3g internet packages are cheaper than idea and Vodafone but they have very bad range issue.
My phone number( 8983024423) it was initially a docomo sim card. They were have shifted home to other location. There was range issue with DOCOMO. All other network provider have good range in my home expect docomo.
I have registered compliant in DOCOMO gallery but they doesn’t responded. Then I have port to idea and now it has good network coverage.