Geography of India, with special reference to Andhra Pradesh
What to master
Physical divisions: Himalayas, Indo-Gangetic Plain, Peninsular Plateau, Coastal Plains, Islands. Climate (monsoon mechanism, jet streams, El Niño), soils (alluvial, black/regur, red, laterite), rivers (Himalayan vs peninsular), and vegetation. Andhra Pradesh specifics: Eastern Ghats, Godavari and Krishna deltas, Coastal Andhra vs Rayalaseema, Araku and Papikonda hills, Kolleru lake, Pulicat lake (shared with Tamil Nadu), Sri Venkateswara and Papikonda national parks, and the Coromandel coast. Note the capital region at Amaravati and the state's mineral wealth (mica, limestone, barytes - Mangampeta is a major barytes deposit).
Traps that recur
- Krishna vs Godavari tributary lists (Godavari: Indravati, Pranahita, Sabari; Krishna: Tungabhadra, Bhima, Koyna).
- Black soil is also called regur and is cotton-friendly - options often call it alluvial.
- Pulicat is a lagoon, not a lake, and lies across AP–Tamil Nadu.
- Which coast - AP faces the Bay of Bengal on the east (Coromandel), not the Arabian Sea.
- Rainfall regime: AP gets most rain from the southwest monsoon in Coastal Andhra but Rayalaseema depends more on the northeast monsoon.
Rule of thumb
For river/tributary questions, remember the mnemonic "G-I-P-S" for Godavari's main tributaries (Indravati, Pranahita, Sabari) and "T-B-K" for Krishna's (Tungabhadra, Bhima, Koyna).
Worked example
"Which lake lies between the Krishna and Godavari deltas?" - Kolleru, a freshwater lake and Ramsar site in Eluru district. Trap: choosing Pulicat, which is further south on the Tamil Nadu border.