import pandas as pd
students = [['jack', 34, 'Sydeny', 'Australia', 85.96],
['Riti', 30, 'Delhi', 'India', 95.20],
['Vansh', 31, 'Delhi', 'India', 85.25],
['Nanyu', 32, 'Tokyo', 'Japan', 74.21],
['Maychan', 16, 'New York', 'US', 99.63],
['Mike', 17, 'Las Vegas', 'US', 47.28]]
df = pd.DataFrame(students, columns=['Name', 'Age', 'City', 'Country', 'Agg_Marks'])
df.set_index('Agg_Marks', inplace=True)
display(df)