What is the minimum to declare in Yono Rummy?

All cards in valid groups with at least one pure sequence in standard Indian Rummy rules.

How many cards are dealt in Yono Rummy?

Thirteen cards per player at deal.

Yono Rummy guide

Indian Rummy in plain words — thirteen cards, one pure sequence minimum, valid sets, then declare.

Deck: Two standard decks plus printed jokers (house rules may vary).
Deal: Thirteen cards each. See card count page.
Pure sequence: Consecutive cards, one suit, no joker.
Impure sequence: Same-suit run using joker as substitute.
Set: Same rank, different suits (max one duplicate suit per set in many rules).
Turn: Draw from closed or open pile, then discard one.
Declare: All cards grouped; at least one pure sequence.