The Indian Patent Office (IPO) by its public notice (on November 23, 2020) informed that it will start accepting Form 5-1 under Chapter 5 of the PPH Guidelines from 7th December 2020 as part of the Bilateral Patent Prosecution Highway (PPH) pilot program that is in effect between the Indian Patent Office (IPO) and the Japan Patent Office (JPO) since 2019.
Source: http://www.ipindia.nic.in/writereaddata/Portal/News/716_1_PPH_notice_for_2nd_year_-7th_December_2020.pdf