The present invention relates to a process for preparation of Dabigatran etexilate or pharmaceutically acceptable salt thereof. The present invention relates to novel compounds, in particular Ethyl-3-{[(2-formyl-l-methyl-lH-benzimidazole-5-yl) carbonyl] -(2-pyridinyl) amino} propanoate and Ethyl-3-{[(2-dichloromethyl-l-methyl -lH-benzimidazole-5-yl)carbonyl]- (2-pyridinyl) amino}propanoate and process for preparation thereof. The present invention further relates to the use of these novel compounds in the preparation of Dabigatran etexilate or pharmaceutically acceptable salt thereof.