Hi, Heni,
Warmest greeting from Bonnie, Top China Travel.
Thank you very much for your kindness of visiting our website and showing your interests on us.
About the extension of your visa, you can visit at:
How to extend my visa?
Also, you can directly connect with the Zhuhai Municipal Public Security Bureau of Exit and Entry Administration
Address: 493, Xianghua Road, Xiangzhou District, Zhuhai City (珠海市香洲区香洲香华路493号)
Tel: 0756-8640525, 0756-8640526
Or consult from the Consulate General of the Republic of India in Guangzhou
Address: 01-04 Units, 14th Floor, Skyfame Tower, 8 Linhe Zhong Road, Guangzhou (广州市林和中路8号天誉大厦(海航大厦)14楼01-04单元)
Tel: 020-85501501
Hope the above is clear and will meet your expectation accordingly.