The correct option is "2 only." District Central Cooperative Banks (DCCBs) primarily serve as the backbone of rural credit by providing financial support to Primary Agriculture Credit Societies (PACS), which are key to disbursing credit to farmers at the grassroots level. While DCCBs do play a significant role in agricultural finance, their short-term credit delivery does not consistently surpass that of Scheduled Commercial Banks and Regional Rural Banks, particularly in terms of volume and reach. Thus, statement 2 is accurate as it reflects the essential function of DCCBs, while statement 1 overstates their short-term credit delivery efficacy.