Related - Software company, Can I join my previous company's' client sister company?

Question:- I have left that company and joined new company before 1.5 month ago. Now my previous client sister company showing in interest and offer me job. Please suggest can I join it ? Even in my offer letter included these two point as below that I can't join client company next two year from the date of receiving. 1. It is understood that the Company has a legally protectable interest in, among other things, its customers contacts, goodwill and unique clients, and therefore, during your engagement and for a period of 24 months thereafter, whether termination of employment is occasioned by the Company, the employee or by mutual agreement, you shall not directly or indirectly for yourself or on behalf of any other enterprise, person, firm, partnership, corporation or company (i) not be employed with the company’s clients and /or competitor company (ii) solicit or cause to be solicited, or recruit or cause any other person to recruit, any other employee of the Company (iii) call upon solicit, divert or attempt to divert any customer of the Company for the purpose of obtaining its or their patronage, or solicit or sell to any such Client any services or merchandise that is the same or substantially the same as the services or products sold by the Company. If there is any breach of the aforesaid terms then you shall be liable to pay to the Company an amount equivalent of 2 times of your annual CTC on account of compensation/damages to the Company. 2.During your employment and for a period of 24 months thereafter, you shall not directly or indirectly, for yourself or on behalf of any other enterprise, person, persons, firms, partnership, corporation, Company own, merge, operate, join, control, be part of, solicit, or be connected in any manner with any business that competes with the Company-at its known clients or clients that have been introduced to you as part of the normal tasks that are allotted to you during your employment. If there is any breach of the aforesaid terms then you shall be liable to pay to the Company an amount equivalent of 2 times of your annual CTC on account of compensation/damages to the Company. Thanks & Regard, Software Engineer