Sir only question paper is uploaded in the link given above for CBT solution place at Askiitians 15.04.18 exam. pl upload solutions
The official answer key will be released on 24th april.
But I can provide you the link to the unofficial key
Please have a look
You will get both question paper and answer key
https://googleweblight.com/i?u=https://engineering.careers360.com/articles/jee-main-answer-key&hl=en-IN&tg=164&tk=15496846143657321804