Answer:

Introduction:
On Republic Day and Independence Day in India, we sing patriotic songs to express our love and respect for our country. These songs are an important part of the celebrations and help in creating a sense of unity and pride among the citizens.

Explanation:
The correct answer for the question is option 'D' - Patriotic songs. Let's understand why this is the correct answer.

Patriotic Songs:
Patriotic songs are songs that are specifically written to evoke feelings of love, pride, and devotion towards one's country. These songs often highlight the history, culture, and achievements of the nation and its people. They serve as a reminder of the sacrifices made by our freedom fighters and the importance of upholding the values and ideals of our country.

Significance of Patriotic Songs on Republic Day and Independence Day:
Republic Day and Independence Day are two of the most important national holidays in India. On these days, we celebrate the establishment of our democratic republic and the freedom we gained from British rule, respectively. Patriotic songs play a crucial role in these celebrations as they help in instilling a sense of patriotism and national pride in the hearts of the people.

Unity and Patriotism:
Singing patriotic songs on these occasions brings people together and strengthens the bond of unity among them. These songs are often sung collectively in schools, colleges, government offices, and community gatherings. The melodies and lyrics of these songs resonate with people of all ages and backgrounds, fostering a sense of belonging and shared identity.

Expressing Love and Respect:
Through patriotic songs, we express our love, admiration, and respect for our country. These songs serve as a medium to showcase our gratitude towards the freedom fighters and leaders who fought for our independence and laid the foundation of our nation.

Conclusion:
In conclusion, on Republic Day and Independence Day in India, we sing patriotic songs to celebrate our nation's history, culture, and freedom. These songs hold a special place in the hearts of the citizens as they bring people together, evoke feelings of patriotism, and remind us of the sacrifices made by our ancestors.