Filing of FIR u/s 498a, 406, 354a & 354c, 323

I was married in Nov'13. My wife left willingly in April'14 & since than residing with her parents. My all-out reconciliation efforts have been exhausted. Thus, as a a final step I filed devorce petition in family court & in turn thereof she filed FIR under the the aforesaid IPC's. Now, please clarify me: 1. What will be the impact of FIR which was filed lateron I e 75 days after filing of divorce petition & that too through court u/s156(3). 2. As there was no such type of complaint prior to filing of FIR even in family meeting/ over telephonic conversations. I have enough evidences thereof. Please clarify whether limitations period will be applied or not. 3. After recording statements, she/ her father is not appearing before police authorities with one or another reasons. 4. She has aborted pregency at her parental house & is not providing medical reports thereof. 5. Whether police is duty bound to do counciling. 6. Under these circumstances how should I act so that police authorities can complete & submit their investigation report to Court. I shall be pleased to have your expert opinion.