Pahani not updated with the previous owner's name (Telangana)

A sold agricultural land to B (2005) and B got pattadar passbooks. B sold land to C and D (2006) . C and D (brothers) divided land equally and got pattadar passbooks. C sold land to E (through AGPA power of attorney) (2017) (E got order copy from revenue to issue passbooks but didn't get the passbooks yet). E sold land to ME (through AGPA power of attorney) (2018). D sold land to ME (through AGPA power of attorney) (2018). I know two many AGPA's. Its a land business there and they want to pay less taxes by AGPA instead of a sale deed. I took legal opinion from an advocate before purchasing the land. Now Registration is done but we are stuck at mutation as the guy in meeseva is saying the previous owners (E and D) doesn't show up online. He only see original owner "A" in pahani. We approached revenue office and even they said that they see only original owner "A" in pahani. Which means all the previous owners never got updated in pahani. The reason being - most of them are not aware of pahani or too lazy as they stay in city and don't want to come all the way to village/mandal to get their names updated in pahani or they might have thought since they have passbooks so all good. I stay abroad and couldn't check pahani online as they shutdown a working website in telangana saying they are hosting a new website (dharani) after state wide land survey - god knows when will it will be live. I trusted my advocate reg pahani but he didn't pointed that still only old owner exist in pahani and instead he said things looked good. I checked EC, Sale deeds, link docs prior to registration and they all are good and also we took possession of the land before registration itself. Neighbors said the land is clear and there were no objections from anyone. However advocate did excellent job of - paper ad, sent notices to previous owners (since we purchased through AGP) To all the respected experts, my questions are: 1) when previous owners got passbooks, don't the pahani automatically updated by revenue? 2) We have all the original passbooks, sale deeds, link documents etc from all the previous owners. Will that help in getting pahani updated with the correct owners? and will we get mutation done smoothly? 3) We gave an application in the revenue providing them the EC, sale deed and link docs. They asked us to come back in a week. Do you think we face any issues? 4) Are there any steps you suggest me at this point?