Learning Japanese can help you find job opportunities in the IT and non-IT fields. In India, there are many job opportunities for people who know Japanese, including:

Translation and interpretation, Teaching, BPO and KPO, Embassies and government jobs, Flight attendant and aviation sector, Sales executives in export-import, Travel, hospitality, and tour guide Work at a Japanese company Travel and tourism sector, Commerce, business, industrial houses, embassies, and diplomatic missions.

In India, Japanese language have a very wide scope. Once you clear the much needed JLPT exam which is held by Japanese Govt. two times a year i.e. in July and December. After clearing it, you can get jobs as an interpreter, translator, voice co-ordinator, work in an MNC, hospitality industry, trainer, a teacher.