Unconsummated Marriage

Hi , My Marriage held on 11.09.2019 as per (Hindu ),after the marriage my wife was quarrelling a lot with me and gave a lot of emotional blackmail on 8 July 2020 she left my place of residence after she being doing a big quarrell with me and from then she is staying with her parents house .Henceforth she lodged a compliant in Tambaram women police station and sent a lawyer notice and claims that my marriage is unconsummated marriage .its been 6 monts of seperation now wherein is refusing for reunion and stay with me in my place .how could i proceed further ? (Note -We(myself and wife ) agreed for mutual consent divorce at police station on that basis i have signed the 13 b petition and i handed over the all gold and silver articles of them by trustworthy ,now they are either refusing for talk and refusing for filing the 13 b petition together for mutual consent and seems they are in intention of getting money (19 lakhs )from me .how to proceed further ? My question - During in our marriage life doctor advised for UPT test (urine pregnancy test ) she also undergone the test but the test result is negative ,so can i produce the doctor prescription and test report of UPT if she claims as unconsummated in court .will be a valid proof of consummation .