The correct option is 1, 2, 3 and 4.
Explanation
The Ganga drainage system receives water from both the Himalayas in the north and the Peninsular Plateau in the south. Several major rivers originate in the northern part of the Peninsular Plateau and flow northwards or northeastwards to join the Ganga or its primary tributary, the Yamuna.
- 1. The Chambal: Correct. The Chambal rises near Mhow in the Malwa Plateau of Madhya Pradesh. It flows northwards through a gorge upwards of Kota in Rajasthan and eventually joins the Yamuna in Uttar Pradesh. Since the Yamuna is the largest tributary of the Ganga, the Chambal is part of the Ganga river system.
- 2. The Sind: Correct. The Sind originates in the Malwa Plateau (Vidisha district, Madhya Pradesh). It flows generally north-northeast and joins the Yamuna in Uttar Pradesh. It is a right-bank tributary of the Yamuna and thus part of the Ganga system.
- 3. The Betwa: Correct. The Betwa rises in the Vindhya Range (Raisen district, Madhya Pradesh). It flows north-east and joins the Yamuna near Hamirpur. It is an integral part of the Ganga drainage system.
- 4. The Ken: Correct. The Ken rises in the Kaimur Range (Katni district, Madhya Pradesh). It flows northwards and joins the Yamuna near Chilla. Consequently, it belongs to the Ganga river system.
Key Takeaway: The primary Peninsular tributaries of the Ganga system include the Chambal, Sind, Betwa, and Ken (which join the Yamuna), and the Son (which joins the Ganga directly).