My boss, who is in Mumbai wanted to go to Thiruppathi. I was calling those agents to check out the rates and other details. One of them told me that it will take 3500 Rs for A/C car and Rs 500/ person for darshan. And then my friend told me to check out tamilnadu tourism packages. So called them up and found out they have A/C coaches running everyday and have a separate queue, so you can finish the darshan in maximum three hours.
Went to their office at Walajah Road. Service is very good. Also found out that we can book online. url is www.ttdconline.com.