Dear Client,

Buffer zone distance will apply which was adopted by BMP in it`s revised master plan. To be more precise, same situation is resumed which was prevailing before NGT order i.e. 30 meters in the case of lakes, and 50 meters from primary, 25 meters from secondary and 15 meters from tertiary Rajkulewas.

If at the time of allotment, it was not coming under buffer zone and sanctioned by BMP, deal is clear.

If you want cancellation than it should for builder fault otherwise entitled to forfeit the booking amount paid for the allotment.

builder cannot charge more than 10 per cent of booking amount as cancellation charges 

2) since your building is more than 100 m from lake boundary your building should be able to obtain OC 

It's better you cancel it as it is a very risky project.  It purely depends on your risk taking ability

Sir after the order of Supreme court 30 m buffer zone as per city master plan  and all the plans for which approval is received shall be given OC if construction is as per the plan.

according to NGT buffer specified is 50 Mts from edge of rajakaluve. 

better you approach the local authorities and find out the lake map and its extent.

The Supreme Court  quashed the National Green Tribunal’s (NGT) order preventing construction within the 75-metre buffer zone around lakes in the city. In a big relief to property owners, a buffer or green zone of 30 metres — as prescribed in the city’s master plan — has to be maintained around the lakes. 

You should consider cancelling the agreement as the North East corner of the project is violating the buffer zone and chances of OC and CC being issued are less.

Also, you would not have to wear any cancellation charges since the cancellation is not done due to any fault on your part. If builder deducts cancellation charges you can file complaint against him in consumer court or in RERA, seeking full refund, along with interest and compensation as the cancellation is due to the breach of the part of the builder, who did not follow the guidelines issued by the government.

Dear client 

1. The current Norm of NGT have a buffer zone of 50m but for   two lakes bellandur and agara lake it is 75m. 
2. If certain building is falling in the buffer zone then builder have to obtain permission from NGT to get construction started on that building And if NGT gives permission than project will get OC certificate easily.
3. As your building is 100 m away from lake then you can go ahead with the purchase as cancellation will cost you more.