The names of delegation members accompanying Prime Minister Narendra Modi on his foreign visits should be disclosed, Chief Information Commissioner R K Mathur directed the PMO.
Mathur rejected the objection by PMO in disclosing the information on grounds of "national security".
Deciding two separate cases, Mathur, however, exempted the PMO from disclosing the names of security personnel and people linked to the security details of the prime minister.
"The commission is of the view that the name/list of non-government persons (having no connection with the security) who had accompanied the prime minister on his international visits... should be provided to the appellant," he said.
The cases came before the Central Information Commission - the final appellate authority in matters related to Right to Information - after applicants Neeraj Sharma and Ayub Ali did not receive a proper response to their applications seeking details of delegation members accompanying the prime minister on his foreign visits.
Sharma had sought the list of CEOs of private business, owners or partners, private business officials etc who accompanied Prime Minister Modi on his international visits.
Ali wanted to know the details of monthly expenses of Modi's residence and office; procedure for meeting him; number of meetings held by the prime minister with public at his residence and office; number of electoral public meetings addressed by him and the government expenditure on them.
Sharma filed the RTI application in July, 2017, while Ali's application was filed before the PMO in April, 2016.
In a recent order, Mathur directed the country's top office to provide information within 30 days.
During the hearing, Sharma told Mathur that he has been informed that the list of members of delegation accompanying the prime minister on domestic and foreign tours cannot be disclosed on security grounds as the same is exempted under Section 8(1)(a) of the RTI Act.
"(Sharma) stated that this same information was available on the website during the tenure of former prime minister Manmohan Singh," Mathur noted.
The PMO stated that details of the PM's visits are available on their website, he pointed out.
However, the names of the delegation members accompanying the prime minister on domestic and foreign visits cannot be disclosed due to security reasons as the threats differ from person to person, it said.