Instrument Token

Dear User
We get the data of the company by using the "insturment token" of the company however, if you want to by the share you have to use the tradingsymbol. For example, "AJANTPHARM / 2079745", here we have company symboll and instrument token. in the address bar you can get the company token if you will use the company symboll. However I do not find the way to get the comapny token using instrument token.
Is there is any way to know know the company symboll through insturment token.
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