There is no update about KVPY 2017 answer key but generally the officials release it within a week right after the exam so tentatively it should be declared soon or there may be a delay as KVPY is going to happen again on 19th Nov for those candidates who were unable to give the test due to technical issues. So it is advisable to keep visiting the official website to know all latest upadtes for the same -

KVPY Official

Good Luck!!!

You can check the answer key from the given below link

KVPY Answer Key

Good Luck!!