Celebrating the independence day without the Tri-color is meaningless. Putting it as a social media DP is fine, and it's great that you make it a point to do it every 15th of August and 26th of January. But, it's the golden jubilee of our Independence after all! Let's make the celebration a bit grand by putting it up on your roof for everyone to see. Your neighbors will definitely like it and follow suit, making you popular in the locality.

Do it if you can afford it. It's definitely worth more than any ordinary party you keep on doing every now and then. After all, it will be for a good, national, and patriotic cause. We don't get to celebrate 75th independence day every day. All you need is a place, a flag, and some sweets or candies to be distributed to participants. Children definitely would love it, and so will elders. Throw in a mix of good patriotic music to make the atmosphere passionate, patriotic, and electric. Who knows people might come forward on their own to chip in with song, dance, and speech to suit the occasion.
In case, the above suggestion sounds too elaborate, just distribute sweets, chocolates, or whatever you feel like in your locality on the 15th of august. OR maybe you can distribute hand flags to children and chest-flag to elders making them happy in the process.

Can't organize something on your own? Then get into groups who are doing it. Fun is all the same in both. Hoist the flag, make a speech, play music, sing, dance, and do whichever you are comfortable with. You'll enjoy it even as an onlooker, trust me!
It's a national holiday and your friends and family can easily come for a get-together. Fly kites with them or choose a game that everyone like playing. Board games are fun too!
If you are the shy type and like to enjoy yourself alone, go for a patriotic film or listen to a nice collection of songs. There are plenty of them available free online.

Women and girls especially love wearing traditional dresses that suit the occasion. Men should try their hand too, it's fun. It makes you feel special and in the mood for patriotism.
This one takes the cake. Elders are used to it. You can do it too if you can't do any of the stuff mentioned above. Listen to the 15 August independence day speech 2022 and become more hopeful and aware of the direction our country is taking. If it's too boring, just watch the flag hoisting ceremony and ensuing national anthem. Trust me, it gives goosebumps.
This is what most, if not all, of us do. It is a good way to feel and make others feel, special about the occasion.
If you are good at writing, speaking, or both; use social media to raise your voice for the recognition of little-known freedom fighters and their less-heard sacrifices. Yes, they deserve a place in public mind-space too.