1. The non compete agreement is valid but only in rare circumstances.
2.Though generally such agreement s are void u/s27 of the indian Contract Act,the globalisation of trad and commerce ahs made courts to interpret such clause in terms of economic considerations only.
3.So only after going though the agreement I can advise better.
4.However oif it is found that there is difference your nature of job and your present business and clientele is also different then I do not thin the suit or injunction is maintainable.