Difficult treks

"Difficult" here scores 64–84/100: serious altitude, big ascent, or exposed pass days. Prior treks above 4,000 m are assumed. Unlike operator labels, the grade is the same formula on every trek, so these are genuinely comparable.

11 treks (11 Difficult), from 2 to 10 days, topping out between 4,590 m and 5,954 m.

Operator prices captured so far start at ₹7,300 per person and reach ₹30,000 for the most expensive route — every price is dated and links to the operator's own page.