My landlord is deducting more money from my deposit and not providing any bills for the deduction

Hi, I've rented a house in Coimbatore which is 10x10 single room with attached bathroom for 3000/- as monthly rental and deposit of 20000/- on 15 June'19. Also, they said 150/- would be for maintenance. But they started to charge additional 100/- for the electricity and water (Which I didn't mind). Our rental period was calculated from 15th to 15th of every month. Got a new job in different city (Cochin), I informed the house owners mom (Who was staying in that same compound) on 2nd of Oct'19, that I would be vacating the house by 2nd of Nov'19. She ask to inform her Daughter (Who's the House Owner and the agreement was made in her name) and she was staying in different city with her family. Tried calling her multiple times and at-last on 14th Oct'19, got her over the phone and informed her the situation and said, will vacate on 2nd of Nov'19 and when she asked about the Deposit. I said you can give me later or when you have money. I vacated the house on 31st Oct'19 and gave the key to the house owners mom and left the city. At the time of giving the key, her mom informed that she would be coming to Coimbatore on 10th of Nov'19 and then will check the house and refund the deposit. On 12th Nov'19 when i tried to reach her over the phone, as usual she was not answering the call and drop her whatsup message. She said, there are few works which she have ask to do, then will calculate the amount and let me know... then on 20th she send me the below deduction charges 1) Whitewash of the house (only one room of 10x10) = 800 2) Plumbing work of the bathroom (which was not working since july and informed her mom already, which they denied) = 700 3) one month rent (where in i need to pay only for 15 days rent) = 3000 4) Night Lamp Replacement = 400 5) Heater Switch Replacement = 90 Total she has a deduction of 5677/- and will transfer only 14323/-. I asked her to share the bills of the above charges and she denies and saying if you are so concern of the charges, you should have did everything and then vacate the house. She's not having any bills for the above deductions. I said, no need to give my deposit and keep it with you... So, Kindly help me of this situation as I need to pay the advance of the current house which I've taken in Kochi and she's adamant not to pay me anything more that 14323/- My email address is [deleted]