Udaipur
Ziro
Mahabalipuram
Kovalam
Darjeeling
Spiti
Gangtok
are some best spots to travel solo in India.
https://tripoto.page.link/ijsPSxHVGxE4vfuu7
Kindly check the above link for more places.
Sikkim should be in your list .Beautiful sceneric views, cafe live music ,friendly people beautiful city with clean roads and most important very safe in all aspects .
None other than Kashmir totally safe with groups or solo u feel at home Must visit Places
Srinagar Dal lake n Mughal Gardens (April to August if ur Greenery lover.) Pahalgam Gulmarg (winter n summer) wullar Lake (bandipora) anytime Gurez valley (April to August ending) road r closed from January due to snowfall till March sometimes in Ist week of April