How many margin results are listed in the election that was won by L. Adaikalaraj C and the party was the Indian national congress? 
CREATE TABLE "list_of_elected_m_ps" (
  "constituency" text,
  "winner" text,
  "party" text,
  "margin" real,
  "runner_up_a" text,
  "party_a" text
);
SELECT COUNT("margin") FROM "list_of_elected_m_ps" WHERE "party"='Indian National Congress' AND "winner"='L. Adaikalaraj c';