The World Record of "YOUNGEST TWINS TO POST MAXIMUM POSTCARDS AT HIGHEST POST OFFICE" was achieved by AARVI RATHI AND AARAV RATHI on 15th April 2025 from Mumbai (Maharashtra) India. 8 years 6 months 13 days old Aarvi Rathi and Aarav Rathi posted 1,234 postcards at Hikkim, the world's highest post office and has set a new world record for International Book of Records.
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