These allegations don't seem to attract 498a nor 406. Can you please be specific about what is alleged in complaint. Lying about education, height etc. can be used as grounds to nullify marriage or pursue 420, 120B (by stretching the interpretation of these sections.) 498a, 406 complaints usually are copy paste template made by lawyers, they asked for dowry, beat me, locked me in room, refused food, took my streedhan, did not return etc etc. If she is hell bent of pursuing such criminal case against you, go talk to an experienced lawyer discuss your story and find some grounds to start a criminal case on her. It takes some effort and patience, but a some prima facie criminal case can be made in most cases. The case may not withstand trial, same way that 90% of 498a cases cannot withstand trial. The legal system is designed simply to harass people, you can stop worrying about proving innocence/guilt etc. Create complaint, establish prima facie by hook or crook, drag trail for years and play tricks to harass further. Finally parties give up, settle and move on with life. This is how legal machinery works.