Match :
Tributary of Ganga - Before Common Era
Meaning of Indus in Sanskrit - 8000 years ago
Full form of BCC - Common Era
Full form of CE - Anno Domini
Full form of AD - Son
Beginning of agriculture - Sindhu

Dear Student

1.  Tributary of Ganga                        Son
2.  Meaning of Indus in Sanskrit         Sindhu
3.  Full form of BCE                            Before Common Era
4.  Full form of CE                              Common Era
5.  Full form of AD                              Anno Domini
6.  Beginning of Agriculture                8000 years ago

Regards