Jal Karath The Jal Karath were a weed - like species from Jal Paloor . Biology . The Jal Karath looked like a mass of thin , twinning weed s attached to a thicker stalk . The body was covered in clusters of white eye s . They were a long lived species , living for centuries without difficulties . They had fluting and high pitched voices . ( PROSE : " Ghosts of India " ) Culture . The Jal Karath were organised into eleven hives , which were subdivided into nucleus colonies and were led by a Hive Council . The hive of a Jal Karath could be identified by the number at the end of their name ( e . g . Darac - 7 was from Hive Seven ) . When shortened , Jal Karath names were made from the first name and the hive number . The Jal Karath measured time in two known methods : Quadrants and Cycles . The 93rd Quadrant was equivalent to the 16th century and Cycles were equivalent to months . ( PROSE : " Ghosts of India " ) Technology . Jal Karath technology looked distinctive , with black walls with jagged angles . Wires and tubing connected the Jal Karath to the ship and other sections of the ship , allowing the Jal Karath to control devices easily . The Jal Karath also had access to A - class pulse flier s for transport , Zytron energy for power , Glamour technology for defence , Mezon disintegrator 7 . 5 s for weaponry , Transmat Pods for teleportation and the technology to create Gelem warrior s . ( PROSE : " Ghosts of India " ) History . At some point in history , Veec - Ellic - Savareen - Jal - 9 criticised the Hive Council , claiming they were cruel tyrants . For this , his nucleus colony was destroyed and he was branded as a traitor . He was chased for 11 Quadrants , until 1947 , when he arrived on Earth . He believed that he had managed to escape his pursuers and settled down in Calcutta , India , living as a human . Three months later , Darac - Poul - Caparrel - Jal - 7 came to Calcutta , looking for Veec - 9 . He also planned to kidnap people and make them into Gelem warrior s , which he would then sell to the Hive Council . With this force , the Hive Council planned to spread out and conquer . When the Tenth Doctor and Donna Noble accidentally came to Calcutta , the Doctor started investigating both the mutations caused by Darac - 7 ' s ship ' s Zytron energy and the kidnapping by the Gelem warrior s . When he found Darac - 7 , Darac - 7 claimed that Veec - 9 was the criminal and that he needed help finding him . Agreeing to help him , the Doctor returned to the TARDIS to help the search , but this was just a ploy by Darac - 7 so he could find out the source of the Doctor ' s technology . At this point , Darac - 7 decided to start a mass kidnapping , planning to collect 5 , 000 humans . With the help of Veec - 9 , the Doctor and his companions were able to track down Darac - 7 ' s ship and free the captured people . When the Doctor , Ranjit and Mohandas Gandhi tried to confront Darac - 7 , they were captured and sent to be turned into Gelem warriors . When Gandhi was put into the extractor , it was shut down , and since the whole ship was interconnected , the whole ship was then shut down . The Doctor then redirected the energy , destroying the ship and killing Darac - 7 . ( PROSE : " Ghosts of India " )