Alexander Cunningham was the first direction general of ASI he founded this in 1861..

Johan Marshall was also the director general of ASI but not first he was in year 1902 to 1928 . He oversaws the excavation of Harappa and mohenjodaro civilization...

( may be this is helpful for u to understand

Alexander Cunningham and Sir John Marshall

Alexander Cunningham

Alexander Cunningham was a British army engineer who became the first Director-General of the Archaeological Survey of India (ASI) in 1861. He was born in London in 1814 and was educated at the Royal Military Academy, Woolwich. He served in the British Indian Army and was posted to India in 1833.

Contributions

Alexander Cunningham's contributions to Indian archaeology are numerous. Some of his notable achievements include:

- He identified the ancient Buddhist site of Sarnath near Varanasi in 1835.
- He discovered the Bharhut Stupa in Madhya Pradesh in 1873.
- He conducted excavations at Taxila in present-day Pakistan in 1863-64 and published a detailed report on his findings.
- He developed a system of dating Indian archaeological sites based on the presence of certain types of pottery, which is still used by archaeologists today.

Sir John Marshall

Sir John Marshall was a British archaeologist and the Director-General of the ASI from 1902 to 1928. He was born in Chester in 1876 and was educated at Oxford University.

Contributions

Sir John Marshall's contributions to Indian archaeology are also significant. Some of his notable achievements include:

- He conducted excavations at Harappa in present-day Pakistan in 1921-22 and discovered the Indus Valley Civilization.
- He conducted extensive excavations at Taxila in 1913-1934 and published several reports on his findings.
- He established the Indian Museum in Kolkata and the Central Archaeological Library in Delhi.
- He played an important role in the preservation and restoration of several important historical sites, including the Ajanta Caves and the Sanchi Stupa.

Conclusion

Alexander Cunningham and Sir John Marshall were both significant figures in the field of Indian archaeology. Their contributions have helped us understand and appreciate India's rich cultural heritage.