A compound of Formula, its tautomeric form, its stereoisomer, its pharmaceutically acceptable salt, its hydrate, or solvate thereof, wherein, R 3m is optionally substituted cycloalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroarylalkyl, and optionally substituted arylalkyl; G 1 is independently selected from -CH 2 - or ring A is optionally substituted heterocyclyl, and optionally substituted heteroaryl; R 2a, R 2b, R 2c, and R 2d are each independently selected from hydrogen, optionally substituted C 1 -C 6 alkyl, and optionally substituted C 3 -C 5 monocyclic cycloalkyl;when 'alkyl' group is substituted, it is substituted with 1 to 4 substituents independently selected from halogen, oxo (=O), alkyl, perhaloalkyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, -N(R 4) 2, -C(=O)OH, -N -SO 2- alkyl, and -OR 4; when 'carbocycle' or 'cycloalkyl' group is substituted, it is substituted with 1 to 4 substituents independently selected from halogen, alkyl, perhaloalkyl, heteroaryl, heterocyclyl, -N(R 4) 2, -C(=O)OH, and -OR 4; when 'heterocycle' or `heterocyclyl' group is substituted, it is substituted with 1 to 4 substituents independently selected from oxo (=O), halogen, cyano, alkyl, perhaloalkyl, heterocyclyl, -OR 4, -OP (OR 4) 2, -P (OR 4) 2, -P (OR 4)R 4a, - SO 2 R 4a, -C(=O)OH, -C(=O)N R 4, -C(=O)N(alkyl)R 4, -N C(=O)R 4a, -N -SO 2. alkyl, -N R 4, and -N(alkyl)R 4; when the 'aryl' group is substituted, it is substituted with 1 to 4 substituents selected from halogen, cyano, alkyl, perhaloalkyl, cycloalkyl, heterocyclyl, -O-alkyl, -O-perhaloalkyl, -N(alkyl)alkyl, -N alkyl, -SO 2 -alkyl, -N(alkyl)C(=O)alkyl, - N C(=O)alkyl, -C(=O)N(alkyl)alkyl, -C(=O)N alkyl, -C(=O)NH 2, - SO 2 N(alkyl)alkyl, -SO 2 N alkyl, -SO 2 NH 2, -OP (OR 4) 2, -P (OR 4) 2, - P (OR 4)R 4a, and -C(=O)OH; when the 'heteroaryl' group is substituted, it is substituted with 1 to 4 substituents selected from halogen, cyano, alkyl, perhaloalkyl, cycloalkyl, heterocyclyl, -O-alkyl, -O-perhaloalkyl, -N(alkyl)alkyl, -N alkyl, -SO 2 -alkyl, -N(alkyl)C(=O)alkyl, - N C(=O)alkyl, -C(=O)N(alkyl)alkyl, -C(=O)N alkyl, -C(=O)NH 2, - SO 2 N(alkyl)alkyl, -SO 2 N alkyl, -SO 2 NH 2, -OP (OR 4) 2, -P (OR 4) 2, - P (OR 4)R 4a, and -C(=O)OH; each R 4 is independently selected from hydrogen, alkyl, and cycloalkyl; each R 4a is independently selected from alkyl, and cycloalkyl. R 3m is optionally substituted cycloalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroarylalkyl, and optionally substituted arylalkyl; G 1 is independently selected from -CH 2 - or ring A is optionally substituted heterocyclyl, and optionally substituted heteroaryl; R 2a, R 2b, R 2c, and R 2d are each independently selected from hydrogen, optionally substituted C 1 -C 6 alkyl, and optionally substituted C 3 -C 5 monocyclic cycloalkyl;when 'alkyl' group is substituted, it is substituted with 1 to 4 substituents independently selected from halogen, oxo (=O), alkyl, perhaloalkyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, -N(R 4) 2, -C(=O)OH, -N -SO 2- alkyl, and -OR 4; when 'carbocycle' or 'cycloalkyl' group is substituted, it is substituted with 1 to 4 substituents independently selected from halogen, alkyl, perhaloalkyl, heteroaryl, heterocyclyl, -N(R 4) 2, -C(=O)OH, and -OR 4; when 'heterocycle' or `heterocyclyl' group is substituted, it is substituted with 1 to 4 substituents independently selected from oxo (=O), halogen, cyano, alkyl, perhaloalkyl, heterocyclyl, -OR 4, -OP (OR 4) 2, -P (OR 4) 2, -P (OR 4)R 4a, - SO 2 R 4a, -C(=O)OH, -C(=O)N R 4, -C(=O)N(alkyl)R 4, -N C(=O)R 4a, -N -SO 2. alkyl, -N R 4, and -N(alkyl)R 4; when the 'aryl' group is substituted, it is substituted with 1 to 4 substituents selected from halogen, cyano, alkyl, perhaloalkyl, cycloalkyl, heterocyclyl, -O-alkyl, -O-perhaloalkyl, -N(alkyl)alkyl, -N alkyl, -SO 2 -alkyl, -N(alkyl)C(=O)alkyl, - N C(=O)alkyl, -C(=O)N(alkyl)alkyl, -C(=O)N alkyl, -C(=O)NH 2, - SO 2 N(alkyl)alkyl, -SO 2 N alkyl, -SO 2 NH 2, -OP (OR 4) 2, -P (OR 4) 2, - P (OR 4)R 4a, and -C(=O)OH; when the 'heteroaryl' group is substituted, it is substituted with 1 to 4 substituents selected from halogen, cyano, alkyl, perhaloalkyl, cycloalkyl, heterocyclyl, -O-alkyl, -O-perhaloalkyl, -N(alkyl)alkyl, -N alkyl, -SO 2 -alkyl, -N(alkyl)C(=O)alkyl, - N C(=O)alkyl, -C(=O)N(alkyl)alkyl, -C(=O)N alkyl, -C(=O)NH 2, - SO 2 N(alkyl)alkyl, -SO 2 N alkyl, -SO 2 NH 2, -OP (OR 4) 2, -P (OR 4) 2, - P (OR 4)R 4a, and -C(=O)OH; each R 4 is independently selected from hydrogen, alkyl, and cycloalkyl; each R 4a is independently selected from alkyl, and cycloalkyl.