@Muthu.svg bro, those are some good questions. Let me try answering them one by one.
Pls share Your experience and comments. It will helpful me.to choose right option.
You can read my Airtel Black (fiber + iptv) connection review thread to get insights on the same.
Bought Airtel Xstream Fiber Black (Fiber + IPTV) connection with AOT-5221ZY (wifi 6) ONT
1.is it worth buy this fiber + dth combo? Wil it reduce net speed if dth running time.
I use Airtel Black combo (fiber + iptv) and I find it worthy because I get more channels compared to Tata Play at reduced cost with 200 Mbps internet.
The speed reduction due to IPTV box is negligible because it uses 2-3 Mbps bandwidth maximum.
2. Dth any package/plan available and we can choose while order. Since I am looking primary tamil,sports and kids channels.. Will they do any dth odu dish setup?
Airtel has curated packs for bundled fiber + IPTV plans. You will get the default pack channels initially but once connect is installed you can add more channels directly from STB or via miss call or Airtel Thanks app.
No, they won't do ODU DTH setup because Airtel has stopped providing DTH for bundled wifi connection after IPTV service launch.
3.some forums mentioned as airtel fiber exstream provide , satelite based or internet based dth ... which one they give while install and which dth model is better without affecting the net speed ..
Only internet based IPTV box is given by Airtel for bundled connections these days.
It is rain proof, unlike traditional dish antenna based DTH. So you would get less interruptions compared to DTH even during rainy days.
4. Is dth will run if fiber connection not working time (if satelite based dth option)
Since dish antenna based DTH is not provided now, this question is not relevant.
For IPTV service, if fiber internet goes down, the TV also goes down.
5. Any difference satelite based dth and internet based dth option, plans, channels wise...
Only one channel difference, Star 4K channel is not available. Rest all things are the same.
Furthermore, the IPTV box is more advanced and having modern hardware & software compared to Xstream DTH box.
Please let us know if having any more questions. Our forum members would be able to answer.