Where does “కోల్‌కాతా” come from?

కోల్‌కాతా (Telugu) comes from Bengali কলকাতা, from Bengali কলিকাতা.

Ancestry of “కోల్‌కాతా”, step by step

Step	Language	Word	Meaning
1	Bengali	কলকাতা	—
2	Bengali	কলিকাতা	—