The "why" and "how" are more complex. The figures include lending as well as direct subsidy. Both China and India have been building at a high rate.
> With regard to domestic public finance identified, India provided the highest amount of support identified by far, at US$10.6 billion per year (2016–2017 average). However, it must be noted that these findings are not directly comparable between countries; one reason behind such high numbers in India is that its banking system is dominated by government-owned banks which were nationalised in the 1960s and 1980s. These banks, despite being majority government-owned, operate predominantly as commercial entities rather than as banks driven by government policy
> In its National Electricity Plan, India still foresees new capacity additions for coal – 45.9 GW from 2017–2027 – but this is dwarfed by planned additions for renewable energy, with 275 GW targeted by 2027 (CEA, 2018)