R.E.M Wheeler's tenure as the Director General of the Archaeological Survey of India (ASI) was marked by several significant achievements. Wheeler, a renowned British archaeologist, served as the Director General from 1944 to 1948. During his tenure, he implemented numerous initiatives that had a lasting impact on the field of archaeology in India.

1. Systematic Excavations:
Wheeler introduced a more systematic approach to excavations in India, which greatly enhanced the understanding of ancient Indian civilizations. He emphasized stratigraphic excavation methods, meticulously documenting each layer of excavation to establish chronological sequences. This approach allowed for a more accurate reconstruction of the past and helped establish a framework for further research.

2. Mohenjo-daro:
One of Wheeler's most notable achievements was his excavation and restoration work at the ancient city of Mohenjo-daro in present-day Pakistan. Under his supervision, the ASI uncovered the remains of this Indus Valley Civilization site, providing crucial insights into the urban planning, architecture, and daily life of one of the world's earliest complex societies.

3. Preservation and Conservation:
Recognizing the importance of preserving India's rich cultural heritage, Wheeler implemented measures to safeguard archaeological sites and artifacts. He established regional conservation laboratories and prioritized the restoration of key monuments, ensuring their longevity for future generations. His efforts in conservation laid the foundation for the ASI's ongoing commitment to preserving India's archaeological treasures.

4. Research and Publications:
Wheeler encouraged extensive research and documentation of excavated sites. He established the Ancient India and Historical Monuments Committees to facilitate scholarly research and publication of findings. These committees played a crucial role in disseminating knowledge and fostering collaboration among archaeologists, historians, and other experts.

5. International Collaborations:
During his tenure, Wheeler fostered collaborations with international institutions and archaeologists, promoting the exchange of knowledge and expertise. These partnerships allowed for a broader perspective on Indian archaeology and facilitated the sharing of research methodologies and technological advancements.

6. Training and Education:
Wheeler prioritized the training and professional development of Indian archaeologists. He established the School of Archaeology in Purana Quila, Delhi, which provided comprehensive training programs for aspiring archaeologists. This initiative laid the groundwork for the development of a skilled workforce in the field of archaeology in India.

Overall, R.E.M Wheeler's achievements as the Director General of ASI were instrumental in advancing the field of archaeology in India. His emphasis on systematic excavations, preservation, research, and international collaborations left a lasting impact on the understanding and preservation of India's rich cultural heritage.

He gave lot of contribution in excavation of Harappa
he used scientific weapons for excavation of hadappa