Hello!
Love all the names you've chosen. Esp Simran & Indra for girls & Sachin for a boy.
The trend among many of my friends who have ties to India (including myself!) is to name our kids crossover names. Here are a few that I know of:
Boys:
Adin (my 3 yr old son - pronounced like "Aiden")
Jayin
Jayden
Aarin
Aiyan (like "Ian")
Robin
Dhillon
Rohan
Raj
Girls:
Anjini (my 7 year old daughter is "Anjini Marie" we get so many compliments for it! not really crossover, but no one butchers it!!)
Maya (too many to count!)
Sonia
Anjali
Tina
Tara
Kareena
Monica
Priyanka
My family is full of various mixes, mostly Indian/White. My kids are the only "Indians"! Hubby & I were both born in US, but parents from diff parts of India (mine from South & DH from Punjab). My daughter has typical SI features - big, beautiful eyes, curly, dark hair & medium tone. My son looks 100% Punjabi. My female cousin who's married to a German have kids who look 100% North Indian (strong Indian features w/light /medium tone skin, dark hair & dark eyes) No one can tell they are mixed w/anything. Just beautiful! A female cousin is married to a blond guy & their kids look Italian/Greek. Male cousin married to an Irish/redhead has kids who look Indian. An Indian uncle married to a German woman have kids who are sandy blond but look Indian in the summer. Genetics is just amazing!
All the best!!