What are SHĀSTRĀS?

Shastras can be classified into the following seven categories.

1. Upanishads
2. Brāhmanās
3. Upavedas
4. Vēdangas
5. Darshanas
6. History(Ethihas)
7. Political

Upanishads:

1. Ēsa
2. Kēna
3. Kata
4. Prasna
5. Mundaka
6. Māndūkya
7. Itharēya
8. Thythirīya
9. Chāndogya
10. Brihadaranyaka

Brāhmanās:

1. Ithareya
2. Shathapatha
3. Sāma
4. Gōpatha

Upavedas:

1. Ayurveda
2. Dhanurveda
3. Ghandarva Vidya
4. Artha Vēda or Shilpa Vidya

Vēdangas:

1. Siksha
2. Astadyayi
3. Mahabhashyam
4. Negantu/ Neruktam
5. Chanddassu
6. Jyothishyam

Darshanas:

1. Visheshikam
2. Nyayam
3. Yogam
4. Shankya
5. Pūrva Memāmsa
6. Vēdantha

History: 

1. Rāmāyana 
2. Maha Bharatha

Political:

1. ManuSmruthi