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The chronology and hominin association of the South Asian Middle Palaeolithic have attracted much attention in the last few decades. The emergence of Middle Palaeolithic culture in the region has been debated between the local origins (behavioural change) model based on an early date around 380 ka and the diffusion (biological change) model based on Homo sapiens dispersals from Africa around 120–80 ka. The latter has more consensus, whereas the former requires a more robust chronological framework to attribute the emergence of the Middle Palaeolithic to behavioural changes. In the absence of hominin remains, the presence of Middle Palaeolithic technological trajectories are frequently used as behavioural markers of Homo sapiens. Homo sapiens fossil remains from the regions between Africa and South Asia dated to ∼ 200 ka presents more convincing support for the latter model. Here we present contextual, chronological and technological analysis of Middle Palaeolithic assemblages dated to 52 ka from Motravulapadu, Andhra Pradesh, India. Morphometrical analysis of the lithic assemblage indicates diverse Levallois core reductions were practised at the site at the onset of MIS 3. Further this evidence highlights the significance of MIS 3 cultural diversity in South Asia, likely related to changing population dynamics, cultural drift, and the highly variable climatic context of MIS 3.

Cardiovascular diseases (CVDs) are the leading cause of death globally and the prevention and control of these diseases tend to entail longer and larger social and economic commitments on the part of governments. This systematic review (SR) aims to understand the quantum, diversity, and quality of implementation research (IR) done in the field of CVDs in India with a view to maximizing the utility of the efforts made by the government. The evidence was collated on IR on CVDs in India conducted in the past 20 years (2001–2021) using a SR approach. The SR was drafted using Preferred Reporting Items for SRs and Meta-analyses guidelines. Academic databases (PubMed, Embase, and Science Direct) and nonacademic databases (Google Scholar and ProQuest) were chosen, along with repositories of gray literature. Retrieved articles were screened for titles and abstracts and assessed by two independent reviewers. The articles also underwent a concomitant risk of bias assessment utilizing checklists (STARI, STROBE, CONSORT, etc.,) and a narrative summary was drafted using SwiM guidelines. In the final analysis, 10 articles that fitted the inclusion criteria of IR for CVD in India were included, of which seven were directed at IR on hypertension, and three were related to coronary artery disease, myocardial infarction, and stroke. Acceptability, adoption, and feasibility were the only attributes of IR that were explored in these studies.