Though

Subordinating conjunction

 Ballia's  core

Noun

  occupation

Noun

  is

Auxiliary

  agriculture

Noun

  but

Coordinating conjunction

  there are

  some

Determiner

  small

Adjective

  industries

Noun

  are

Auxiliary

  existing

Verb

.

Though Ballia's core occupation is agriculture but there are some small industries are existing.

Though Ballia's core occupation is agriculture but there are some small industries are existing.