Reason for Creating new post is
there are many questions need to be ans, many posts have Q&A with different network questions and answers,little confuse
we will discuss here only on Airtel Network (important questions regarding Queue/extension)
Airtel Q1.My Current plan and Renewed plans are same
ANS
current validity + new recharge validity = My current validity (my new plan not showing as Upcoming plan)
My current and new plan Amount is 499
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Airtel Q2. My Current plan and Renewed with different plan

Airtel Q3. Queue/extension max days ( Current plan + New Plan = Max Days can be ?)
Not official source but As per Dimers
max they queued was 168 days else the plan started on same day
How many plans will get queued ?Current plan + 1 Plan queued as per talking with CC
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Airtel Q4. which plans/Amount are eligible for Queue/extension
Airtel Q5.Can we recharge Airtel from Talktime balance using Airtel app?
Yes
at payment page in Airtel app (You can see Main account balance ) select and Pay
Note: it work only on which number has balance – it wont work other airtel numbers
pls do discuss Q&A of Airtel only
if you have any new questions pls comment
pls ans If you can – which will be helpful to all
I will Update this thread – once we had new Q&A
#Airtel
Credits @Vaastav , @mithhonly1