That tiger looks like he means business! The British had pulled out of India by 1948. Two years before they did, they minted these rupee denominations in nickel. They are nice looking coins, but not very valuable.
Catalog values for these coins are listed below:
worn: less than $1 US dollar approximate catalog value
average circulated: $1
well preserved: $2
fully uncirculated: $4
worn: less than $1
average circulated: $2
well preserved: $3
fully uncirculated: $10
average circulated: $3
well preserved: $6
fully uncirculated: $12
1 rupees without a small diamond under the date were struck at Lahore (most others were struck at Bombay) and are slightly scarce - multiply the above values by 2.
Use our Important Terminology page to convert these catalog values to actual buy and sell values.