Siva was born on April 15, 2022. The same year Independence day was celebrated on Monday. On which day was Siva born?

Given information:
* Independence Day (August 15, 2022) = Monday
* We need to find the day on April 15, 2022.

Let's calculate the total number of days between April 15, 2022, and August 15, 2022:

* Remaining days in April = $30-15=15$ days
* Days in May = $31$ days
* Days in June = $30$ days
* Days in July = $31$ days
* Days in August up to Independence Day = $15$ days

$$\text{Total Days}=15+31+30+31+15=122\text{ days}$$

Now, find the number of odd days by dividing by $7$:

$$\frac{122}{7}=17\text{ weeks and }3\text{ odd days}$$

Since we are going backward in time from August to April, we subtract $3$ days from Monday:

$$\text{Monday}-1=\text{Sunday}$$

$$\text{Sunday}-1=\text{Saturday}$$

$$\text{Saturday}-1=\text{Friday}$$

Therefore, Siva was born on Friday.