Sandhi (संधि) is the phonetic combination of two letters or words when they come together in Hindi and Sanskrit. The term literally means "joining" or "union." When two words are placed adjacent to each other in a sentence, their meeting point undergoes sound changes governed by specific rules. Understanding sandhi is essential for SSC GD Hindi questions on word formation, grammar correction, and sentence structure.
In the SSC GD exam, sandhi appears both directly (identifying the correct sandhi or breaking words into components) and indirectly (in error spotting and sentence correction). You will encounter 1–2 questions requiring you to recognise sandhi patterns, break compound words (विच्छेद), or choose the correct sandhi combination. The three main types—Swar Sandhi (स्वर संधि), Vyanjan Sandhi (व्यंजन संधि), and Visarg Sandhi (विसर्ग संधि)—together form the foundation of classical Hindi word formation.
Mastering basic sandhi rules gives you an advantage in the Hindi grammar section and helps decode unfamiliar compound words. Focus on the most common sandhi patterns rather than memorising every exception. Recognition speed is more valuable than theoretical depth for this competitive exam.
Key Concepts
**Sandhi definition**: The phonetic transformation that occurs when the last letter of one word meets the first letter of the next word, creating a smooth, unified sound. Example: देव + आलय = देवालय.
**Vichchhed (विच्छेद)**: The reverse process—breaking a sandhi compound back into its original component words. This is frequently tested: given "महर्षि", identify that it came from "महा + ऋषि".
**Three main types**: Swar Sandhi (vowel + vowel), Vyanjan Sandhi (consonant-related changes), and Visarg Sandhi (changes involving visarga ः). Each follows distinct transformation rules.
**Swar Sandhi rules**: When two vowels meet, they may combine into a single long vowel (दीर्घ), form a semi-vowel (यण्), create a vowel blend (गुण/वृद्धि), or merge into अय्/अव् (अयादि).
**Vyanjan Sandhi principle**: Consonant changes occur based on voicing, aspiration, and the presence of nasal sounds. The most common is the conversion of त्/द् to the following consonant's type.
**Visarg Sandhi patterns**: The visarga (ः) either disappears, converts to a vowel (ओ/अ), or becomes स्/र् depending on the following sound. Example: मनः + अनुकूल = मनोनुकूल.
**Exam strategy**: You rarely need to derive sandhi from scratch. Instead, recognise patterns in answer choices and eliminate obviously wrong combinations using vowel-consonant compatibility.
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**Context matters**: In SSC GD, sandhi questions test recognition, not production. Practice identifying which sandhi type was used rather than memorising every sub-rule.