A bench of Justices A K Sikri and Ashok Bhushan issued notice to the probe agency and Tripathi onn the plea filed by Seema Singh, the mother of Sara.
Advocates Prashant Bhushan and Neha Rathi, appearing for Seema Singh, assailed the high court order granting bail to the lawmaker.
The court posted the matter for further hearing after three weeks.
"Given his political background, the Respondent No. 2 (Tripathi) has the potential of tampering with the evidence in the present case and thereby hindering with process of justice according to the due process established by law," the plea said.
More From This Section
She said that on May 2, two unidentified persons stopped her and threatened her with dire consequences if she continued to fight the case.
Tripathi, a sitting MLA from Nautanwa in Uttar Pradesh, was chargesheeted by the Central Bureau of Investigation (CBI) on February 18 this year in the case.
He is the son of politician Amarmani Tripathi, who has been convicted of murder of poet Madhumita Shukhla and is serving life sentence in that matter.
The Allahabad High Court had on March 9 granted bail to expelled Samajwadi Party leader Tripathi, charged by the CBI with the murder of his wife.
However, her parents alleged that she was murdered by her husband of two years.
The matter was then handed over to the CBI and Tripathi was arrested and sent to jail on November 25, 2016.
Tripathi, who has contested from Nautanwa Assembly segment as an independent candidate, was expelled from the Samajwadi Party on February 23 last for 'anti-party activities'.
Both Amarmani and his wife Madhumani were awarded life sentence in 2007 by a CBI court for the murder of budding poetess Madhumita Shukla.