Battery backup and do not proper work in touch

Dear sir I have charging issue in my phone model techno spark go
Kindly suggest

When I bought techno spark power 2 smart phone.at that time battery backup was 2 to 3 days.
But from last 2 days it's Battery backup get reduces to only half day.
And it is also hang for 1 to 5 second

My charger and my connectors are not working

sir I have purchase tecno spark air 6 in before two month.
but chagrin data cable is not working
so you have give me salutation
this problem

मैंने 30 नम्बर को tacno spark power2 खरीदा था जोकि न ही गिरा था और न ही कभी दवा था ।हमेशा फोन मेरे हाथ मे रहता है और जब use नही करता हूँ तो टेबल या अलमीरा में रखा होता है ।अब इस मोबाइल की डिस्प्ले टूट गई है लेकिन मोबाइल चल रहा है ।कृपया मेरा मोबाइल ठीक करने की कृपा करें एवं मेरा मार्ग दर्शन करें।

Maire phone tencno kc2 maire phone mai earphone mai sound nahi aarah hai

Sir mere mobile ke handset se phone charge nahi ho raha hai .Uski data cable kam nhai kar rahi hai . Aur abhi phone ko kewal 3 mahine hue hai . Set ko liye hue .Sir please suggest kijiye ki bareilly me service center kha hai.jha ye change ho sake.