the agricultural land comes under the revenue department and hence the local officials have the authority to transfer the land in your name and measure the land if necessary. the kaanungo and patwari should be contacted.

regards

1) apply to survey office for demarcation of boundaries of land 

2) you have to first get land mutated in your name 

3) enclose father death certificate 

4) if no objections are received mutation would be done in your mother and your name 

Patwari of your area can measure the land and the Order of Tehsildar to decide the boundary of the land

See if the property is an agriculture land and fall in revenue records after father demise based on the death certificate you can apply for mutation of the property in your and your mothers name and further can file an application with Tehsildar to pass an order to get land measured and demarcated. 

1. it is not clear for what purpose do you need this information.

2. In any event you can engage a land surveyor and get your land measured. there is no difficulty in engaging private surveyor to take stock of the land you own.

3. I am not sure what exactly you are trying to mean by ' certify'.

1) The tahsildar has rights to measure the land kindly apply to land demarcation department.

1. You can ask the tenshildar to demarcate the same. 
2. The tehsildar can appoint a land surveyor and he can measure your portion of the land. 
3. If he does not listen then file a complaint to the collector, then last option is to approach the civil court. 
4. The land officers have to measure the land and hand over the same to you because later ownership disputes could arise. 

You need to Approach the architect or officer concerned from municipal corporation or Panchayat as the case may be for the same. He will measure and certify it

Get building plans sanctioned from muncipal corporation and then carry on construction on your land 

See if you have got khata mutated and said khasra is in your name let uncle proceed you can defend you can go on with your construction work.

Initially you construct temporary shop for few days no need to construct permanent shop. See 6 months to 1 year and than construct once you receive municipal tax bill for first year.

You don't have to worry about what your uncles says you can confirm the same through Nagar nigam via RTI and then start the construction

Dear Sir,

File permanent injunction suit and get temporary injunction against them.  If necessary get the help of court commissioner to make local inspection and to measure the land.  

1. FIRSTLY apply for Survey ONLY with the Tahsil Office (not private survey) and obtain proper Survey Report.

2. Based on the Survey Report, take permission to construct shop/house, from the local relevant authorities. This will safeguard you in future, for the purposes of sale /transfer /gift /mortgage....

Keep Smiling .... Hemant Agarwal

If you father purchased this land by a registered sale deed or had inherited from his father or had been allotted with this land, then he should have clear and marketable title to the property.

If he had the title to property then there should be a schedule to the property by which you can come to know the total extent of the property.

In the total extent of the property, your father's legal heirs consisting you, your siblings and mother shall be entitled to an equal share in it.

On an amicable partition among yourselves, you can call the surveyor to measure the same and allocate the share to each successor accordingly.

If your uncle is threatening you about this, you may better clarify from the nagar nigam itself about it.

If you do not want to visit nagar nigam about this then you may go ahead with the construction, let the authorities come and inspect and issue a notice after which you can face them legally.