The two officials from Haryana Police are at the campus of Ryan International School, said DCP (Zone-XII) Vinay Rathod.
Of the two officials one of them is an inspector-level officer. They are verifying documents and questioning staff, said an official.
Fourteen police teams have been constituted to probe the case.
The Haryana Police will be questioning school CEO Ryan Pinto and other top brass.
The seven-year-old was found dead with his throat slit in the washroom of the school in Gurgaon.