i called again today, they said" you can apply again for these same post and can give two tests for same post, this test will be conducted aprox after 5-6 months but the previous applications are still in queue, and they are still processing them first"

even if they need more people, the no. of vacant positions are same and they advertised only after 2 months again, why it does not sound fishy to you "Cricketer".