According to the current rate, India will take 2.5 years to vaccinate 75% of its population. As of now, the government is providing vaccines only for people above age 45 only 3 percent of the population has been vaccinated.
The shortage of vaccines is one of the reasons behind the delayed timelines. The two main vaccine manufacturers of the covid vaccine are Covishieled and Covaxin. India has also allowed the import of foreign-made vaccines such as Pfizer, Moderna, and Johnson & Johnson, and even recently the Russian vaccine Sputnik V has also been approved for emergency use.