Based on the search results, the following specific agreements were reached during the Modi-Xi meeting at the BRICS Summit in Kazan, Russia:

1. Disengagement Agreement: India and China reached an agreement on disengagement of troops along the Line of Actual Control (LAC) in eastern Ladakh, particularly focusing on patrolling arrangements in the Depsang and Demchok areas.

2. Resumption of Patrolling: Both sides agreed to resume patrolling activities in these areas, returning to the pre-2020 situation. This effectively ends the “blocking” of each other’s movements that had occurred since the 2020 clash.

3. Future Talks: Modi and Xi directed their Special Representatives - National Security Advisor Ajit Doval for India and Wang Yi for China - to meet at an “early date” to discuss the broader boundary dispute.

4. Diplomatic Engagement: The leaders instructed their respective Foreign Ministers to meet soon to discuss restarting other mechanisms of dialogue and to work on rebuilding ties.

5. Commitment to Peace: Both leaders emphasized the importance of maintaining peace and tranquility along the border as a priority for their bilateral relationship.

6. Broader Cooperation: They agreed to explore ways to stabilize and enhance bilateral relations, recognizing the importance of their partnership for global peace.

7. Global South Cooperation: Xi suggested that India and China should set an example for developing countries by fostering unity and promoting multipolarity in international relations.

It’s important to note that while these agreements mark a significant step towards de-escalation, many details about implementation and specific terms remain undisclosed. The agreement is seen as a starting point for normalization, with further steps needed for complete resolution of border issues.