In a certain code language, KOLKATA is coded as $11151211012001$. How will BENGAL be coded in that same language?

Let's analyze the positional values of the alphabet ($A=1,B=2,\dots ,Z=26$) expressed in a two-digit format:
* $\text{K}=11$
* $\text{O}=15$
* $\text{L}=12$
* $\text{K}=11$
* $\text{A}=01$
* $\text{T}=20$
* $\text{A}=01$
Combining these gives: $11151211012001$.

Apply the same rule to BENGAL:

* $\text{B}=02$
* $\text{E}=05$
* $\text{N}=14$
* $\text{G}=07$
* $\text{A}=01$
* $\text{L}=12$

The resulting string is $020514070112$.