When the completion schedule is 2016 for the state of jammu & kashmir, what is the smallest S.no.?
CREATE TABLE "hydro_power_stations_under_construction" (
  "s_no" real,
  "power_plant" text,
  "state" text,
  "total_capacity_mw" real,
  "completion_schedule" text
);
SELECT MIN("s_no") FROM "hydro_power_stations_under_construction" WHERE "state"='jammu & kashmir' AND "completion_schedule"='2016';