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My vote is NOTA. Explanation is given below
Don't compare situation of Kalaburagi & Mangaluru with Rayadurgam, Kalyanadurgam & Kadiridevarapalli. Both are different. We are not getting proper intra-state trains to Kalaburagi & Mangaluru because of the only reason i.e., they are in different zones. That is not the condition with Rayadurgam, Kalyanadurgam & Kadiridevarapalli. Rayadurgam, Kalyanadurgam & Kadiridevarapalli will stay in SWR (even though they are in Andhra Pradesh) because of their location. But SWR didn't neglect them. Rayadurgam has 2 daily trains and a weekly train to Guntakal Junction (a big station and divisional headquarters of SCR). Rayadurgam has a daily train to it's district headquarters Anantapur. Rayadurgam has a daily & weekly train to Tirupati. Tirupati trains from Rayadurgam...
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run in different route there by connecting different parts of Andhra Pradesh and Rayadurgam. Rayadurgam has a bright future after completing of Rayadurgam - Tumakuru line. It is too early to talk regarding Kalyanadurgam & Kadiridevarapalli because construction of Rayadurgam - Tumakuru line has not yet completed. There is a proposal of Ballari - Dharmavaram new line. Route of Ballari - Dharmavaram line will start from Kalyanadurgam not Ballari. So Ballari - Dharmavaram line will serve as shortcut for Rayadurgam, Kalyanadurgam people to reach Andhra Pradesh and trains can be introduced in this route after the line is commissioned. Survey of Ballari - Dharmavaram new line has been completed but it is not yet sanctioned