Seema, who qualified for the Olympics on Friday, won the gold after her rival, Ecuador's Lucia Yamileth, withdrew from the final due to injury.
In the repechage round, Nisha Dahiya (68kg) was defeated 5-1 by Buse Tosun of Turkey.
The Greco-Roman wrestlers from India had a bad day. Due to illness, Sachin Rana (60kg) had to forfeit his first round bout, while Ashu (67kg) and Deepanshu (97kg) both lost in the first round.
Gurpreet Singh (77kg) and Sunil Kumar (87kg) both lost early but were still in consideration for bronze medal at the time of going to the press.
Indian wrestlers won eight Olympic quota positions, four each in the men's and women's freestyle categories.
In addition, the nation earned eight wrestling slots in the Rio Olympics, including three each in men's and women's freestyle wrestling and two in Greco-Roman wrestling. After Narsingh Yadav (74kg) was suspended by the CAS for a doping violation, the team could only field seven athletes.