Mitra was provided security following her apprehensions about her safety.
"She had expressed her apprehensions to us and we have provided her full security," Delhi Police Commissioner B.S. Bassi said.
Bharti's wife had met Delhi Police officers on Wednesday evening regarding a domestic violence case.
Earlier on Wednesday, she had approached the Delhi Commission for Women (DCW) alleging that the AAP leader has been abusing her ever since their marriage in 2010.
DCW issued summons to Somnath Bharti and asked him to appear before the commission on June 26.
The AAP legislator, who was a law minister in the earlier AAP government that came to power in Delhi in December 2013, has termed the charges "baseless".