Kothapalli to Manoharabad 151 kms may be completed with in 5 years as this route passes through the MLA Segments of KTR,Harish Rao and KCR ,They are siricilla MLA segment of KTR,Siddipeta MLA Segment of Harish Rao and native hometown of KCR and Gajwel MLA segment of KCR Honourable CM of TS,and Vemulawada famous pilgrim centre which is also known as "Dakshina Kashi" also known as "Rajanna Temple" on this route belongs to the MLA segment of CH.Ramesh Babu who is the cousin of CH.Vidyasagar Rao Joint Governor for Both Tamila nadu and Maharastra and he is near relative to TS CM KCR and Karimnagar MP segment belongs to B.Vinod Kumar who is also the near relative of CM KCR.
And...
more...

moreover KCR Agreed to bear 3/4 th of the Land Cost on this project, as Kothapalli to Manoharabad 151kms is our TS CM KCR's dream project.As this line passes through his hometown.When KCR agreed all these restrictions which were imposed by Central Railway Ministry,Centre gave green signal for this project.Already this Kothapalli-Manoharabad Railway line foundation state was laid at Gajwel station in August 2015 by our Honourable PM Shri Narendra Modi Ji and Honourable CM KCR Garu.Almost land survey was completed till Vemulawada only a rest of 25kms land survey is balancing.Already track laying works are started and station building constructions are going at Nacharam,Iranagaram and Gajwel towns.
Once this Railway line is completed,it will be an alternate route for the passengers from Hyderabad who are going to NewDelhi/Varanasi/Jabalpur/Allahabad/Patna/Darbhan ga/Ranchi/Bilaspur/Raipur/JammuTawi/Chandigarh/Nag apur/Lucknow/Amritsar/Shri Matha Vaishno devi Katra which will be linking at Peddapalli Jn on New Delhi-Chennai GT Route.and merging at Kothapalli station on PDPL-NZB section.Let us see what will happen.
And even for NGP/G/BPQ/SKZR/MCI/BPA/RDM/PDPL this Kothapalli-Manoharabad route will be an alternative route to go to Hyderabad/Bengaluru instead of going via PDPL-KZJ-SC.
As of now from PDPL to SC via KZJ is 207kms and PDPL to SC via KRMR-Siddipet-MOB is 40+151+9+35=235Kms which is just 28kms longer when compared to the route from PDPL to SC Via KZJ.And any how this Kothapalli to Manoharabad Route will be single line and diesel engine section and again kothapalli to Peddapalli it will be single line and electrified section and Manoharabad to secunderabad it will be double line and electrified section.
If any train which is going towards NDLS/BSB/PNBE gets any problem due to floods or derailment on SC-KZJ-PDPL route can be diverted to run Via SC-MOB-KRMR-PDPL route in future after the completion of this Kothapalli-Manoharabad Railway Line.
I have doubt on the remaining projects about their survey and track laying what you stated because those may take more than 1 decade due to poor funds allocation by IR and SCR and no proper MP and MLA .But this Kothapalli-Manoharabad 151kms will be completed as soon as possible.Which was given as an election manifesto during the formation of Telangana state at Gajwel by our TS CM KCR.Let us see what will happen.