Name the transliteration for ചിങ്ങം
CREATE TABLE "kollam_era_calendar" (
  "malayalam_name" text,
  "transliteration" text,
  "concurrent_gregorian_months" text,
  "sanskrit_word_and_meaning" text,
  "zodiac_sign" text
);
SELECT "transliteration" FROM "kollam_era_calendar" WHERE "malayalam_name"='ചിങ്ങം';