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Hindi Medium: (Delhi) - GS Foundation (P+M) : 14th Oct. 2026, 06:00 PM Hindi Medium: (Prayagraj) - GS Foundation (P+M) : 22nd Sept. 2026, 8:00 AM English Medium: (Delhi) - GS Foundation (P+M) : 12th Oct. 2026, 5:30PM English Medium: (Prayagraj) - GS Foundation (P+M) : 19th Aug 2026, 11:00 AM Hindi Medium: (Delhi) - GS Foundation (P+M) : 14th Oct. 2026, 06:00 PM Hindi Medium: (Prayagraj) - GS Foundation (P+M) : 22nd Sept. 2026, 8:00 AM English Medium: (Delhi) - GS Foundation (P+M) : 12th Oct. 2026, 5:30PM English Medium: (Prayagraj) - GS Foundation (P+M) : 19th Aug 2026, 11:00 AM

Prelims

Sodium-Ion Battery (Na-ion Battery)

02-Apr-2025

A Sodium-Ion Battery (Na-ion) is a type of rechargeable battery that uses sodium ions (Na⁺) as the charge carriers, instead of the lithium ions used in traditional Lithium-Ion Batteries (Li-ion). 

Thorium Molten Salt Nuclear Reactor

02-Apr-2025

A Thorium Molten Salt Reactor (TMSR) is a type of nuclear reactor that uses thorium as fuel instead of uranium.

Small Modular Reactors (SMRs)

02-Apr-2025

SMRs are compact, safe, and flexible nuclear reactors designed to generate up to 300 MW(e) of power per unit, much smaller than traditional reactors (700 MW(e) or more). 

Battery Energy Storage System (BESS)

02-Apr-2025

Battery Energy Storage System (BESS) is a type of electrochemical energy storage system (ESS) that uses various electrochemical reactions to store electrical energy for later use.

Fast Breeder Reactor

02-Apr-2025

A Fast Breeder Reactor (FBR) is a type of nuclear reactor that uses fast neutrons to produce more nuclear fuel than it consumes during electricity generation.

Tokamak: An Experimental Fusion Reactor

02-Apr-2025

A Tokamak is an experimental machine designed to harness the energy of nuclear fusion, the process that powers the sun. 

How practice strengthens your UPSC exam preparation

02-Apr-2025

The UPSC exam is one of the toughest exams in India, which requires a smart approach to preparation. While studying is important, regular practice makes a big difference to success. Here is how practice helps in UPSC preparation:

NUCLEAR ENERGY

01-Apr-2025

Nuclear energy is the energy stored in the nucleus of an atom and is released through nuclear reactions. 

Methanol (Methyl Alcohol) – A Toxic Chemical Substance

01-Apr-2025

Methanol (CH₃OH), also known as wood alcohol or spirit, is a colourless, light sweet-smelling, and highly volatile liquid. 

GLP-1 Hormone and Its Role in Weight Loss Medications

01-Apr-2025

Glucagon-Like Peptide-1 (GLP-1) is an incretin hormone produced naturally in the human body. 

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