Groups:

group1 = {'KGS00','KGS20'};
group2 = {'KNG02'};
group3 = {'KGS05','KGS06','KGS07','KGS08'};
group4 = {'KGS14'};
group5 = {'KGS17','KNG04'};
group6 = {'KGS18','KNG03','KNG01'};
group7 = {'KGS19','KNG05'};
group8 = {'KGS01','KGS02','KGS03','KGS04'};
group9 = {'KGS09'};


Stations coordinates:
Lat: {'KGS01': 78.784104, 'KGS02': 78.782769, 'KGS03': 78.783601, 'KGS04': 78.783875, 'KGS05': 78.80595, 'KGS06': 78.806737, 'KGS07': 78.807406, 'KGS08': 78.806772, 'KGS09': 78.783626, 'KGS10': 78.783626, 'KGS11': 78.783626, 'KGS12': 78.780694, 'KGS13': 78.815, 'KGS14': 12.89525, 'KGS15': 12.89521, 'KGS16': 12.89512, 'KGS17': 12.95425, 'KGS18': 12.69389, 'KGS19': 13.06988, 'KGS20': 12.69389,KNG01': 78.8021683834914, 'KNG02': 78.8331347394615, 'KNG03': 78.7926642280379, 'KNG04': 78.8029644633417, 'KNG05': 78.7926334700362}

Lon: {'KGS01': 78.784104, 'KGS02': 78.782769, 'KGS03': 78.783601, 'KGS04': 78.783875, 'KGS05': 78.80595, 'KGS06': 78.806737, 'KGS07': 78.807406, 'KGS08': 78.806772, 'KGS09': 78.783626, 'KGS10': 78.783626, 'KGS11': 78.783626, 'KGS12': 78.780694, 'KGS13': 78.815, 'KGS14': 12.89525, 'KGS15': 12.89521, 'KGS16': 12.89512, 'KGS17': 12.95425, 'KGS18': 12.69389, 'KGS19': 13.06988, 'KGS20': 12.69389,KNG01': 13.0091991201411, 'KNG02': 12.6959759551556, 'KNG03': 13.0130794989437, 'KNG04': 12.9580705864609, 'KNG05': 13.0573746205983}