hello chirag. Posting in English would help as more members will understand your problem and suggest trouble shooting options .
OP's problem: " My motherboard resets...pls help"
Which motherboard do you have? what do you see when you say it is resetting?
your problem may get solved by changing the motherboard battery (coin type flat cell). go to the market and most likely a watch repair shop will have battery type CR 2032. In India you will likely get Maxwell CR2032.
p.s. a very important thing is that you should not post your phone no here. you might get banned!