**Analysis of the Agreement**

The given agreement involves the sale of goodwill of a shop by A to Vikas for a consideration of rupees 10 lakh. Additionally, A promises not to carry on a similar business forever and anywhere in India. Let's analyze the agreement in detail:

**1. Sale of Goodwill**
The sale of goodwill is a common practice in business transactions. Goodwill represents the reputation, customer base, and brand value of a business. It is an intangible asset that can be transferred from one party to another for a monetary consideration. In this case, A is selling the goodwill of his shop to Vikas for rupees 10 lakh.

**2. Consideration**
Consideration refers to the price or value exchanged between the parties involved in a contract. In this agreement, the consideration for the sale of goodwill is rupees 10 lakh. It is important to note that consideration must be lawful and of some value to make the contract enforceable. Here, the monetary amount fulfills this requirement.

**3. Non-Compete Clause**
The agreement also includes a non-compete clause, whereby A promises not to carry on a similar business forever and anywhere in India. This clause restricts A from engaging in any business activity that competes with the business being sold to Vikas. Non-compete clauses are commonly used to protect the interests of the buyer and ensure that the seller does not re-enter the market and compete with the buyer using the same goodwill.

**4. Validity and Enforceability**
The enforceability of non-compete clauses varies across jurisdictions. In India, the Indian Contract Act, 1872 governs the enforceability of such clauses. Section 27 of the Act states that agreements in restraint of trade are void, with certain exceptions. However, this agreement falls within one of the exceptions, as it is a sale of goodwill and includes a reasonable restriction. Therefore, the agreement is likely to be valid and enforceable.

**5. Scope and Duration of Non-Compete Clause**
The agreement does not specify the scope or duration of the non-compete clause. It is important for the agreement to clearly define the scope of the restriction, such as the specific type of business or geographical area covered. Additionally, the duration of the restriction should be reasonable. However, since these details are not provided, it may create ambiguity and potential disputes in the future.

**Conclusion**
In conclusion, the given agreement involving the sale of goodwill and a non-compete clause is legally valid and enforceable. However, it is recommended to include specific details about the scope and duration of the non-compete clause to avoid any potential disputes in the future.