NTT DoCoMo has served a fresh notice to Tata Sons in London to enforce the $1.17 billion in damages awarded by an international arbitration court. The notice was served on Wednesday after the Japanese firm received approval from an England court to initiate the proceedings.The Japanese telecom company has decided to take legal recourse for enforcement of the arbitration award in countries where Tata Sons has a major presence. According to sources close to NTT DoCoMo, the decision was taken as it was unhappy at the manner in which the dispute has been handled by Tata Sons.