Bottom row — च व ब म ज + confusion-pair drills

The bottom row in Kruti Dev hosts five high-frequency consonants: च (C), व (V), ब (Y), म (M), and ज (P). Together with the home row and top row you have already learnt, this gives you the 15 keys that account for roughly 80 per cent of any Hindi passage.

Lesson 4 also tackles the biggest sound-vs-sight confusion in Hindi typing: श, ष, स. All three sound similar in casual speech but they are three different consonants on three different keys. SSC passages routinely test all three in the same paragraph. Get them sorted now, not after you have built bad muscle memory.

श is on the M key. ष is on the " key (yes — the double-quote position, which is the classic Kruti Dev trap). स is on the V key. Drill 4 below specifically targets this triplet.

The श-ष-स confusion is the single most common error pattern we see in self-taught Krutidev typists. They never sat down and drilled the three keys separately, so their hands developed a "near-enough" reflex that produces wrong characters under exam pressure.

The other quiet payoff of Lesson 4: you have now touched 15 keys. With these alone you can type a sizeable chunk of real Hindi. Try reading a Hindi news headline and identifying how many letters you could already type. The answer is usually 60-70 per cent.