Hey guys, thanks once again for answering and clarifying my queries.
I did take a good step by joining this community and really amazed that so many peoples came forward to put their opinions and helped me out.

Based on some more research, I've finally decided to go with "Coinomi". Trust wallet was my first choice but later I discovered that it lacks the desktop option and I'm not a huge fan of smartphones. If there is something which I don't know about Coinomi or I am doing a blunder by choosing it (apart from that security/ seeds and phase are my top-most priority which I should always pay attention to), do let me know as now I want to stick to this community and learn more. Maybe someday even I could also stand in a position where I can help someone with the knowledge I am going to gain from here.

In future if I find myself holding a huge amount, I will try to afford a hardware wallet to make things more secure.