Complex sentence: Her advanced training was under Acharya Choodamani Late Sri.A.Sundaresan, a disciple of Sri C.V.Krishnamurthy Iyer, Sri Ramnad Krishnan and Alathur Sri Sivasubramanya Iyer.
Split into simpler sentences: Her advanced training was under Acharya Choodamani Sri. A. Sundaresan, a disciple of Sri C. V. Krishnamurthy Iyer, Sri Ramnad Krishnan and Alathur Sri Sivasubramanya Iyer.