
## Effiya Technologies Interview Experience (On-Campus, August 2025)

The placement drive for **Effiya Technologies** was conducted at our campus during the **last week of August 2025** for a 6-month internship + FTE role. The drive was open to **B.Tech CSE students** with **no CPI criteria**, making all students from the branch eligible.



### Round 1 – Online Test

A total of **148 students** appeared for this round, which consisted of **MCQs** based on **Aptitude** and **Core Computer Science subjects** (DBMS, OS, DSA, etc.).
After evaluation, **48 students** were shortlisted for the next round.



### Round 2 – Written Test

This round had **two descriptive problem sets**:

* **Set 1:** Design an algorithm to find **defaulted accounts** using two given tables — a **Policy table** and a **Due Pay table**.
* **Set 2:** A question related to **matrix operations** (details not remembered).

After this test, **12 students** were shortlisted for the interview rounds.



### Round 3 – Technical Interview 1 (Online)

This round was conducted **online**. It began with a short **introduction** and a **discussion on my resume projects**.
Then, I was asked the following **DSA problem**:

> You are given `M` candles, of which `N` are initially lit. Each operation allows you to choose a candle at position `i`, which toggles the state of its adjacent candles (`i-1` and `i+1`). The candles are arranged **circularly**. Determine whether it’s possible to light all candles.

After this round, **9 candidates** were shortlisted for the next interview.



### Round 4 – Technical Interview 2 (Offline)

This round consisted of **two analytical and coding problems**:

1. **Array Transformation Pattern**
   Given two arrays, determine the pattern by which `arr1` is transformed into `arr2`, and code the approach.
   **Example:**

   ```
   arr1 -> 3 1 4 2 5  
   arr2 -> 1 3 5 4 2
   ```

   The pattern was: sort the array, then alternately pick elements from the head and tail.

2. **Estimation and Logical Question**
   A park has an **area of 5 km²** with a **plot of 15m × 25m**, and a **10m-wide road** along the 15m side.
   Each **lamp** covers a **radius of 50m** and costs **$100**.
   As a lamp manufacturing company, estimate **how much to bid for the lighting contract**.
   The interviewer focused more on the **reasoning and estimation process** than exact numerical accuracy.

After this round, **6 candidates** advanced to the final interview.



### Round 5 – Technical Interview 3 (Offline)

The final interview was conducted by the **Director**. It involved a **business-analytical question**:

> Given a table containing the details of bank loans, calculate the **interest earned by the bank each month** from **January 2025 to December 2029**.

This round assessed both **analytical skills** and **understanding of financial logic**.
Finally, **3 candidates received the offer**, while I was **not selected** after this round.




Effiya Technologies Interview Experience (On-Campus, August 2025)The placement drive for Effiya Technologies was conducted at our campus during the last week of August 2025 for a 6-month internship + FTE role. The drive was open to B.Tech CSE student