Here we have only 02 rules to learn full Article topic.
'The' is always use with Universal Truths.
अगर Fill in the blank के बाद वाले शब्द का sound vowel आता है तो An का प्र्योग किया जाएगा।
Example-Ram gave me-----------Umbrella.
Here Sound is Vowel.Answer is An
If we talk about collections of lakes, groups of islands ( archipelago ), and mountain chains ( not individual lakes, islands, and mountains), ‘the’ is used.
अगर Fill in the blank के बाद वाले शब्द का sound Consonant आता है तो A का प्र्योग किया जाएगा।