Yes, Indian patents are subject to substantive examination. Substantive examination is carried out on request (by the applicant or an interested party). That is, to determine if the invention meets the patentability requirements (novelty, inventive step and industrial applicability). You need to submit Form 18 in order to make the request. Basically, once you submit the request for examination, your application will be lined up for the exam. Eventually, it will land on the desk of an examiner who is experienced in the field of the invention. As mentioned, all Indian patents subject to substantive examination, and the examiner shall examine your application on its merits.
Within 6 months, the IPO will send its First Office Action to you in the form of First Examination Report (FER).
Also, do make sure that you check out this free e-book: A Quick Guide to Patents. Basically, it deals with basics of patent procedures.
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