What would be the expected salary for Data Science fresher with 10 Years experience?



Hi All,

I am currently working as php developer from 10 years with more than 12Lakhs ctc per annum . I want career shift to Data science field . What challenges i should face . Will my salary get decreased or increased - As i was already getting good CTC can i expect companies give me same CTC for fresh knowledge with Past experience ?

Will my salary get effected if i change my career to data science after 10 years of work experience as developer?