Python
import pandas as pd 
empdata={'empid':[101,102,103,104,105,106],
         'ename':['Sachin','vinod','Lakhbir','Anand Ganesh','Devinder','UmaSelvi'],
         'Doj':['12-01-2012','13-01-2012','05-09-2007','05-09-2007','05-09-2007','16-01-2012']}
df=pd.DataFrame(empdata)
print(df)
df1=df.rename(index={0:'First Name',1:'Second Name',2:'Third Name'})
print('DataFrame after renaming the Indexes')
print(df1)
empid         ename         Doj
0    101        Sachin  12-01-2012
1    102         vinod  13-01-2012
2    103       Lakhbir  05-09-2007
3    104  Anand Ganesh  05-09-2007
4    105      Devinder  05-09-2007
5    106      UmaSelvi  16-01-2012
DataFrame after renaming the Indexes
             empid         ename         Doj
First Name     101        Sachin  12-01-2012
Second Name    102         vinod  13-01-2012
Third Name     103       Lakhbir  05-09-2007
3              104  Anand Ganesh  05-09-2007
4              105      Devinder  05-09-2007
5              106      UmaSelvi  16-01-2012