Nava limited buyback

Seems to be an attractive buyback in the current falling market. Company has low debt, debt has reduced from higher levels to current levels and has 30% + CAGR over last 5 years. On the downside the company has delivered a poor sales growth of 5.32% over past five years. What else needs to be considered before buying at current levels? Worth buying only for the buyback or even for long-term?