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BSNL Mobile Recharge Plans in Tamil Nadu
Best mobile operators in Tamil Nadu are: Airtel, BSNL, Jio Reliance, Vodafone, Idea, T24.

Most popular BSNL recharge types are: 2G Data, 3G Data, 4G Data, FRC, Full Talktime, ISD, Local, Night, Other, Plan, Roaming, SMS, STD, Top up, Validity.
Which is the best plan in BSNL?
This plan by BSNL enables free calls worth Rs 50 and supports free data usage of 500MB. This plan has also the benefit of free SMS to their users, which makes customers get access to 100 SMS per month. Subscribers should take note that for this plan and all other BSNL post-paid plans will be charged with Rs 500 as a security deposit for local + STD connections. Rs 2000 in case of local+STD and ISD connection, so the overall cost of one-time setup will come out to be Rs 600 or Rs 2,100 depending on your selection of a plan.

This prefixed monthly bill plan of Rs 149 offers 100 free local and STD calls to the users. When it comes to data, this plan unleashes the 500MB of data and also offers 100 free SMS.

The Rs 225 fixed monthly bill also differs in the same manner. This plan by BSNL has the option of 180 free calls for the users. they also get additional access to 3000MB free data and 100 SMS per month.

Rs 325 fixed monthly plan avails 270 free calls. As for the data and other related offerings, this plan unpacks 7GB of data for the complete month along with 100 SMS per day.

This fixed monthly plan of Rs 399 is unique because it has various benefits from others. The plan offers unlimited free local and STD voice calling to any circle. In the entire month, this plan by BSNL offers 30GB free data along with 100 SMS.

This is the only plan in BSNL portfolio of Rs 500 and above offers unlimited free calling to the users in which includes Local, STD and roaming. For data, the plan avails 40GB data for the complete month with 100 SMS per month.

The Rs 725 plan also offers unlimited local, STD and roaming calls. The users can enjoy the access to 50GB data in a month with 100 SMS to their credit.

This plan in the BSNL offers unlimited local, STD and roaming calls to the subscribers over and off BSNL network to both landline and mobile customers. The data offering in this plan is 90GB along with 100 SMS per month.

This is the most expensive plan in the entire BSNL post-paid plans list, and this one also offers unlimited local, STD and roaming calls to the users over and off BSNL network to both landline and mobile customers. The interesting part of the Rs 1,525 post-paid plan is it does not keep any check on data.
What is BSNL 49 plan?
BSNL PV-49 detailed
As mentioned above, it is a prepaid recharge voucher available for Rs 49. Launched with effect from August 20, 2019 (via DreamDTH), the BSNL prepaid plan offers 250 minutes of daily local and national voice calls for 9 days. After 9 days, local and national calls will be charged at 40 paise per minute. The plan also includes 1GB data valid for 15 days.
The plan validity is for 180 days, which means you will keep receiving incoming calls for 190 days. After 15 days, or once 1GB data is expired, BSNL users will have to make a data top-up recharge to use mobile data. Similarly, for calls, users will have to do a top-up refill to get talk time.
Is BSNL 4g available in Tamilnadu?
State-owned Bharat Sanchar Nigam Limited (BSNL) is set to roll out its 4G services in two cities of Tamil Nadu in a couple of days, according to a BSNL official. BSNL general manager P V Karunanithi told Express that the services would be launched in Coimbatore and Salem followed by Tiruchirapalli, Madurai, Vellore and Nagercoil and subsequently in other cities. This comes as the Department of Telecommunications is finalizing the plan for allocating 5MHZ of 4G spectrum to BSNL on 2100 MHZ band.

The official said that a technical team is working on it and trials are going on. It is learnt that BSNL mobile customers are being provided with 4G sims free of cost in place of their 3G sims at Coimbatore and Salem.

Once the customers move to 4G connection, they will get fast data download upto 21MBPS.
S M Kalavathi, chief general manager of Chennai Telephones, said 4G services will be rolled out in Kancheepuram and Chengalpet in the first week of March, provided they get the licence and spectrum is allocated. The towers are being installed at ECR and OMR, following partnership with Nokia to deploy 4G VoLTE services.
Is BSNL 429 plan available?
Bharat Sanchar Nigam Limited (BSNL) has introduced a new Bonus Data Powered by
offer worth Rs 429 wherein the users of the prepaid plan will get additional data for a limited time. The state-owned telecom major is now offering additional data benefit of 1.5GB over and above the 1GB data per day. The subscriber will get a total data benefit of 2.5GB per day as part of the offer. BSNL has said that it will be offering 1.5GB additional data just this month and from November, it will change the offer and add only 1GB additional data. The new offer will provide 1.5GB of additional data per day for October. The plan will offer 1GB of additional daily data in November, according to a report by Telecom Talk.
The new Rs 429 offer is inspired from BSNL's existing Bumper Offer which has been available for a while now. The Bumper Offer, in comparison, provides 2.2GB of additional data on selected prepaid plans. Other than the additional data, the Rs 429 BSNL recharge plan offers unlimited voice calling and 100 SMS messages per day.