As per the post, the case filed by the poster's wife is in the trial stage only.
Therefore, it is better that the poster should bring it to the notice of the prospective employer with the relevant particulars of the case with the stage of its pendency.
Every accused is innocent until he is proved to be guilty. Even, the Supreme Court has observed that section 498-A can be used by any disgruntled wife against her husband as well as his relatives more as a weapon rather than as a shield. Hence my presumption is that no progressive employer would treat the pendency of a case u/s 498-A against a prospective employee as a disqualification if he promptly disclosed the fact.
From India, Salem