Please file a case for divorce under Sec 13(1)(a) of Hindu marriage act on basis of cruelty. In evidence produce earlier FIR that was closed and also if you have records of her extra affair. In meanwhile if New 498a case is registered in.some police station better get anticipatory bail from.local jurisdiction . Order for maintenance of wives, children and parents.
(1) If any person having sufficient means neglects or refuses to maintain-
(a) his wife, unable to maintain herself, or
(b) his legitimate or illegitimate minor child, whether married or not, unable to maintain itself, or
1. Subs. by Act 45 of 1978, s. 12, for" Chief Judicial Magistrate" (w. e. f, 18- 12- 1978 ).
(c) his legitimate or illegitimate child (not being a married daughter) who has attained majority, where such child is, by reason of any physical or mental abnormality or injury unable to maintain itself, or
(d) his father or mother, unable to maintain himself or herself, a Magistrate of the first class may, upon proof of such neglect or refusal, order such person to make a monthly allowance for the maintenance of his wife or such child, father or mother, at such monthly rate not exceeding five hundred rupees in the whole, as such Magistrate thinks fit, and to pay the same to such person as the Magistrate may from time to time direct: Provided that the Magistrate may order the father of a minor female child referred to in clause (b) to make such allowance, until she attains her majority, if the Magistrate is satisfied that the husband of such minor female child, if married, is not possessed of sufficient means. Explanation.- For the purposes of this Chapter,sessions court of that district. In that also mention that your wife has habit of filing false case and rely on earlier FIR to get anticipatory bail.
Secondly if.she has to get divorce case transferred from your state to her state she needs to approach supreme court.
Regarding maintenance if she is educated and was working you may not have to pay her maintenance for life but she can claim litigation expenses under.Sec 24 of Hindu Marriage act