कई दिन

several days

→ कई
phrase Rare #7,058
several days The form कई दिनों is commonly used before postpositions such as से (since/for) and तक (until/for).
HI: मैं कई दिनों से उसका इंतज़ार कर रहा हूँ।
EN: I've been waiting for him for several days.

कई दिन से पिटाई नहीं की थी।

I hadn’t beaten anyone in days.

— Sholay (1975)

कई दिन थे जब मैंने सोचा अगर मैं कभी उपाय करूंगा।

There were many days when I wondered whether I would ever find a way.

— Crazy Rich Asians (2018)