India, The Second largest telecommunication network in the world in terms of wireless connections. India is also the fastest growing telecommunication in the world. According to Wikipedia, Presently India has a huge mobile subscriber base with 635.51 million subscribers. The competition between the leaders in private mobile network providers like Airtel, Reliance, Vodafone, Tata telecommunications, etc., Leads to very cheap calling rates in India. The calling rates has been reduced to even 1 Indian paise for 2 seconds in some subscription plans. The charges of getting a Sim has also been reduced to a nominal charge of around 
15. This is a great advantage to the Indian mobile customers. At the same time, There are some disadvantages too.
Some people are even misusing this advantage also. Many People are getting troubled by unknown callers. unknown callers are troubling the mobile users by send unknown messages and calls. So, Many mobile users don’t know that they can trace those unknown callers. The tracing of those unknown callers helps you take any further action if required.
To trace an Indian mobile number navigate to this Wiki Page. In this Wiki page, You can trace a mobile number to an extent of finding their Network provider, The state their mobile number is registered, etc., THis Wiki Page is updated regularly with the latest information.
Alternatively, If you want to trace a mobile number easily just by entering mobile number, You can use these web services which are based on the information provided on Wiki page. You can use this website or this one to trace mobile numbers. You can have a look on one of these web services below:
In one of those web services it looks like the pictures below, You just have to enter a mobile number, then press submit button.
Then you will get a result page with the number details like below:
If you want to trace the details of a mobile number like Door number, Owner details, etc., You have to contact Network providers and take any further action if required. These details are not published on web because to protect the privacy of the mobile number owner.
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Source: Wikipedia
#1 by Raju on September 1, 2010 - 6:20 PM
I am very thankful to you.
I was getting too many missed calls from one unknown number, With the help of this post i am able to find the state and network provider of that number.
Can u please let me know how to find further details like owner details,etc???
Once again, Thanks for the good info on How to trace mobile numbers in India.
#2 by Chetan on September 1, 2010 - 6:56 PM
Hello krish,
First of all thanks for the information.
I am not able to find the details of 9966985301.
Can you please send me the details of this number 9966985301?
#3 by mittakrish on September 1, 2010 - 7:01 PM
@ Chetan
You are welcome.
And the details of 9966985301 you have asked for has been e-mailed to you.
#4 by jawahar on September 3, 2010 - 3:04 PM
9843585503
#5 by mittakrish on September 3, 2010 - 3:34 PM
@ Jawahar
An E-Mail has been sent to you with the details of 9843585503.
#6 by sachin on September 3, 2010 - 8:28 PM
i need the details of this number 9440512190
#7 by mittakrish on September 3, 2010 - 10:19 PM
@ Chetan
An E-Mail has been sent to you with details of 9440512190 as per your request.
#8 by saran on November 23, 2010 - 5:31 AM
it’s dosn’t provide subscriber name and other details any way not bad
#9 by manoj kumar on November 23, 2010 - 7:58 PM
Check this shaplus mobile info at http://www.shaplus.com/mobile/ it is freeware for java mobiles which can trace any indian mobile number. it is offline application so you can check number on the go without net connection.