Micromax Mobile Yureka Yu — Failed to repair mobile

Address:

441102

Dear sir/madam,
I had purchased the yureka yu (Micromax co.) on date 26/04/2015 from amazon. I had used this phone for one year. On date 21/05/2016 (Within 20 days of expiring warranty period.), there is problem occurred in mobile, it stuck on yu symbol & failed to power on. I had submitted the mobile to micromax service center m/s. Nova services at nagpur with jobsheet no.[protected]-23507836 on dt. 23/05/2016. As per mentioned service center, they sent that mobile for repair to micromax delhi office. On dt. 31/05/2016 mentioned service center told me (On phone) that, my submitted yu mobile can't repair, & told me to pick up & take home the same.
Here i had lot of question about the service provided by yu micromax. I don't know how micromax service center people from nagpur & delhi office (Main office) failed to repair their design design & manufactured mobile? Is that service provided by micromax. The fault occurred in mobile within 20 days of expiring warranty period. If all customer gets such problem within such period after buying such costly mobile, then what will do by customer? Is that company policy for customer to buy new mobile every year?