Hindi dictionary plugin for Multiling O Keyboard autocorrect and word prediction
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⑴ Install this plugin and Multiling O Keyboard. https://play.google.com/store/apps/details?id=kl.ime.oh
⑵ Run O Keyboard and follow its setup guide.
⑶ Slide space bar to switch languages.

If you have font issue, read this: http://honsoapps.appspot.com/1/ma.html

Wikipedia:
Indic language, Hindi (हिन्दी), or more precisely Modern Standard Hindi (मानक हिन्दी), is a standardised and Sanskritised register of the Hindustani language. Hindustani is the native language of most people living in Delhi, Uttar Pradesh, Uttarakhand, Chhattisgarh, Himachal Pradesh, Chandigarh, Bihar, Jharkhand, Madhya Pradesh, Haryana, and Rajasthan.[6] Modern Standard Hindi is one of the official languages of India