CHENNAI: Raising concerns about the poor calibre of teachers in taking competitive tests, less than 1% of candidates who sat for the Tamil Nadu Teacher Eligibility Test on July 12 passed. Candidates attributed the poor result to the lack of time to complete the exam. "We were told to take extreme caution in colouring the bubbles in the OMR sheet," said Santhosh Raj, a middle school teacher. "This is the first time we are coming across this answer sheet. Just colouring our answer options took a lot of time," he said. Many said they could not find time to study with a full time job. Of the 6.67 lakh candidates, whose answer sheets were evaluated, only 2,448 passed.