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How many working days in year 1972?

Here is the detail of the calculation:

Because 1972 is a leap year, it has 366 days.

Let's remove 53 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 253 working days in 1972.

Here is the list of these 7 public holidays:

1. Makar Sankranti : пятница, 14 январь, 1972
2. Republic Day : среда, 26 январь, 1972
3. Good Friday : пятница, 31 март, 1972
4. Mesadi : пятница, 14 апрель, 1972
5. Independence Day : вторник, 15 август, 1972
6. Mahatma Gandhi's Birthday : понедельник, 2 октябрь, 1972
7. Christmas : понедельник, 25 декабрь, 1972

And here are the 3 public holidays falling on a weekend:

1. New Year's Day : суббота, 1 январь, 1972
2. Maharaja Shivaji Jayanti : суббота, 19 февраль, 1972
3. Christmas Eve : воскресенье, 24 декабрь, 1972