These are one rupee note bundles of 100 notes in running serial order. The page includes the "Big Coin" issue signed by Finance Secretary R.N. Malhotra from 1981, along with a serial bundle signed by Finance Secretary Bimal Jalan from 1990 — both offered in UNC condition.
The one rupee note is issued by the Government of India rather than the RBI, so it carries the Finance Secretary's signature instead of the RBI Governor's — one reason collectors track its signatories closely and like to keep full 100-note packets in original serial order. Older signatures and specific years become harder to gather as intact, uncirculated bundles as time passes.
What a bundle is worth turns on the signature, the year, the serial run and the grade — a crisp UNC packet leads, circulated ones trail. Coinbazzar lists verified one rupee bundles with images showing the serials and condition, so you know exactly which packet you are buying.