https://www.epo.org/en/node/what-do-i-need-do

What do I need to do to get an early filing date in India?

For non-Convention applications it is possible to get an early filing date by filing a provisional specification, which has to be followed by a complete specification within 12 months of filing. Provisional specifications cannot be filed for divisional, Convention or PCT national phase applications.

If you require a more detailed answer, please send us your question using the contact form.