This is a genuinely rare and highly unusual find: a matched pair of ₹10 Reserve Bank of India star notes sharing the identical serial number 753786, distinguished only by their different plate letters — N and P (00F*N 753786 and 00F*P 753786). Under normal RBI printing protocol, no two notes should ever carry the same serial number within the same prefix — this pairing exists specifically because star notes are replacement notes, issued to substitute for defective notes detected during printing, and in rare cases, the replacement process results in duplicate serial numbers appearing across different printing plates within the same batch. This is a genuine, documented printing-process rarity, not a common occurrence, and pairs like this are highly prized by error and star-note specialists.

Adding further significance, the shared serial number 753786 ends in "786" — a number widely recognized and considered auspicious across South Asia, associated with "Bismillah ir-Rahman ir-Rahim" in Islamic numerology. This gives the pair a dual layer of desirability: the technical printing rarity of duplicate star note serials, combined with the cultural and sentimental appeal of a "786" number ending.

Both notes feature the standard Mahatma Gandhi series design — Gandhi's portrait, the Ashoka Pillar emblem, and the RBI Governor's signature and promissory clause: "I PROMISE TO PAY THE BEARER THE SUM OF TEN RUPEES" — with the asterisk (*) clearly visible in the serial number on both notes, confirming their star/replacement note status.

Why this pair is exceptional:

• Duplicate serial numbers (753786) across two star notes — a genuine RBI printing-process rarity, occurring only when replacement notes from different plates happen to carry matching serials
  
• Star note status on both pieces — replacement notes are inherently printed in smaller quantities than standard-run notes, adding baseline scarcity before the duplicate-serial factor is even considered
  
• "786" auspicious number ending — widely recognized cultural significance, broadening appeal to buyers beyond dedicated numismatists
  
• Different plate letters (N and P) — confirms these are genuinely separate printing plates producing an identical serial, the specific technical detail that defines this as an error/rarity pairing
  
• Pair integrity — the value of this find lies specifically in owning both matching notes together; separated, each becomes simply "a star note," but together they document a verifiable printing anomaly

Who this pair is for

This is a standout acquisition for error-note and star-note specialists, collectors specifically pursuing duplicate-serial printing rarities, and buyers drawn to the "786" auspicious number who want a pair with genuine technical rarity behind it — not just a fancy number, but a documented anomaly in the RBI's printing process.