Krishna Raja Sagara Dam/Reservoir is developed on
- (a)river Krishna
- (b)river Tungabhadra
- (c)river Godavari
- (d)river Kavery
Correct — D, river Kavery. The Krishna Raja Sagara (KRS) dam and reservoir stand across the Kaveri (Cauvery) river, just below its confluence with the Hemavati and Lakshmana Tirtha, in Mandya district of Karnataka near Mysuru. It was engineered by Sir M. Visvesvaraya and built under Maharaja Krishnaraja Wadiyar IV of Mysore (completed 1931), after whom it is named; the famous Brindavan Gardens are laid out below it.
- (a)river Krishna — The dam's name honours Maharaja Krishnaraja Wadiyar IV, which makes 'Krishna' tempting — but the reservoir lies on the Kaveri, not the Krishna. The Krishna river is dammed instead at Almatti and Nagarjuna Sagar.
- (b)river Tungabhadra — The Tungabhadra (a tributary of the Krishna) is dammed at Hospet in Karnataka, not at KRS.
- (c)river Godavari — The Godavari flows through Maharashtra, Telangana and Andhra Pradesh; it has no connection with the KRS reservoir near Mysuru.
KRS is a major multipurpose gravity dam on the Kaveri, one of peninsular India's great east-flowing rivers. It supplies irrigation and drinking water to the Mysuru–Mandya belt and to Bengaluru, and its release is central to the long-running Kaveri water-sharing dispute between Karnataka and Tamil Nadu.
The trap is the name — 'Krishna Raja Sagara' honours a Mysore king, not the Krishna river. Anchor to geography — the dam sits near Mysuru in the Kaveri basin, so the river must be the Kaveri.
- KRS dam is on the Kaveri (Cauvery) river in Mandya district, Karnataka.
- Engineered by Sir M. Visvesvaraya; built under Krishnaraja Wadiyar IV; completed 1931.
- The terraced Brindavan Gardens are laid out on its downstream side.
- Further downstream on the same Kaveri, Tamil Nadu's Mettur (Stanley) reservoir stores the released water.
- Picking 'Krishna' because the dam is named Krishna Raja Sagara.
- Confusing the Tungabhadra (dammed at Hospet) with the Kaveri.
Dam–river pairings are asked directly ('X dam is built on which river') or as match-the-list — memorise KRS/Mettur = Kaveri, Almatti = Krishna.
Match List I (Rivers) with List II (Dams) and select the correct answer: List I — I. Cauvery, II. Krishna, III. Narmada, IV. Chambal; List II — A) Alamatti, B) Mettur, C) Gandhi Sagar, D) Sardar Sarovar.
- (a) I-A, II-D, III-B, IV-C
- (b) I-B, II-A, III-D, IV-C
- (c) I-B, II-A, III-C, IV-D
- (d) I-A, II-C, III-D, IV-B
Answer(b) I-B, II-A, III-D, IV-C
Same concept — matching a dam to its river. The UPSC item pairs the Cauvery with the Mettur dam (downstream of KRS on the very same Kaveri), which reinforces that KRS too is on the Kaveri.
Which of the following tributaries is/are correctly matched with the Deccan Rivers? Tributary — River 1. Bhavani — Krishna 2. Kabini — Kaveri 3. Manjra — Godavari 4. Bhima — Mahanadi Select the answer using the code given below:
- (a) 1 and 2
- (b) 2 and 3
- (c) 1 and 3
- (d) 3 and 4
Answer(b) 2 and 3
Same theme — peninsular river geography. This NDA item tests tributaries of the Deccan rivers (Kabini is a Kaveri tributary), the same river system on which KRS is built.
- practice — not a real PYQ
The Mettur (Stanley) Dam is built across which river?
- (a)Krishna
- (b)Kaveri
- (c)Godavari
- (d)Tungabhadra
Answer(b) Kaveri — like KRS upstream, Mettur impounds the Kaveri in Tamil Nadu.
- practice — not a real PYQ
The Brindavan Gardens are associated with which dam?
- (a)Nagarjuna Sagar
- (b)Hirakud
- (c)Krishna Raja Sagara
- (d)Bhakra
Answer(c) Krishna Raja Sagara — the terraced gardens lie below the KRS dam near Mysuru.