Complex sentence: Therefore they named this Taluka by the name of the migrater Syed Nawab Shah, which was initially called Nawabshah Town, then named Nawabshah Taluka before finally being changed to Nawabshah District.
Split into simpler sentences: Therefore they named this Taluka by the name of the immigrant Syed Nawab Shah. It was initially called Nawabshah Town, then named Nawabshah Taluka before finally being changed to Nawabshah District.