Can Tariff heading 87089900 considered as deemed manufactured?

the TSH is parts and accessories for automobiles, if u are manufacturer then its manufracturing otherwise its input for car manufacturer.

@ sharma - can you explain what is this 87089900....???

You are mentioned Commodity tariff number.  It is your produt classification no. 

Please explain what you can do

Agree with sharma ji.

RITC HS code is used at the time of import / export.

jayasri you can go from the below mentioned link:-

https://www.eximguru.com/hs-codes/section-xvii-vehicles-aircraft-vessels-and_550.aspx

Thank you Ramesh kumar verma sir,,