Rupee in the context of "Wajid Ali Shah"

A promissory note, sometimes referred to as a note payable, is a legal instrument (more particularly, a financing instrument and a debt instrument), in which one party (the maker or issuer) promises in writing to pay a determinate sum of money to the other (the payee), subject to any terms and conditions specified within the document.

The Indian numbering system is used in India, Pakistan, Nepal, Sri Lanka, and Bangladesh to express large numbers, which differs from the International System of Units. Commonly used quantities include lakh (one hundred thousand, 10) and crore (ten million, 10) – written as 1,00,000 and 1,00,00,000 respectively in some locales. For example: 150,000 rupees is "1.5 lakh rupees" which can be written as "1,50,000 rupees", and 30,000,000 (thirty million) rupees is referred to as "3 crore rupees" which can be written as "3,00,00,000 rupees".

There are names for numbers larger than crore, but they are less commonly used. These include arab (100 crore, 10), kharab (100 arab, 10), nil or sometimes transliterated as neel (100 kharab, 10), padma (100 nil, 10), shankh (100 padma, 10), and mahashankh (100 shankh, 10). In common parlance (though inconsistent), the lakh and crore terminology repeats for larger numbers. Thus lakh crore is 10.

The tola (Hindi: तोला / Urdu: تولا, romanized: tolā; also transliterated as tolah or tole) is a traditional South Asian unit of mass, now standardised as 180 grains (11.6638038 grams) or exactly 3⁄8 troy ounce. It was the base unit of mass in the British Indian system of weights and measures introduced in 1833, although it had been in use for much longer. It was also used in Aden and Zanzibar: in the latter, one tola was equivalent to 175.90 troy grains (0.97722222 British tolas, or 11.33980925 grams).

The tola is a Vedic measure, with the name derived from the Sanskrit तोलः tolaḥ (from the root तुल् tul) meaning "weighing" or "weight". One tola was traditionally the weight of 100 Ratti (ruttee) seeds, and its exact weight varied according to locality. However, it is also a convenient mass for a coin: several pre-colonial coins, including the currency of Akbar the Great (1556–1605), had a mass of "one tola" within slight variation. The first rupee (Urdu: رپيا; rupayā), minted by Sher Shah Suri (1540–45), had a mass of 178 troy grains, or about 1% less than the British tola. The British East India Company issued a silver rupee coin of 180 troy grains, and this became the practical standard mass for the tola well into the 20th century.