<https://textbookpdf.in/tn-4th-tamil-guide-term-3-lesson-6/>
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"Tamil Nadu 4th Std Tamil Term 3 Book Back Solution. Lesson 6 மலையும் எதிரொலியும். Book Back Questions and Explanation."
<https://textbookpdf.in/tn-4th-tamil-guide-term-3-lesson-6/>